(footsteps approaching) (dog barking) (sinister music) The majority of people who commit murder, 89 percent use a single method to kill.

Where more than one method is used, the act is usually premeditated.

In these cases, the killer will tend to be more aggressive, more sadistic.

In most instances, you will be looking for a man with a history of violence, A man who takes pleasure in it.

But be warned, while our education system might reward the regurgitation of statistics, a homicide investigation requires nimble thinking.

There are always exceptions.

Professor.

So, did you learn anything?

You don't mind biting the hand that feeds you.

The purpose of education is to encourage people to think for themselves.

Uh, may I see?

Oh, it's...nothing but the date and a doodle.

Excellent.

(dramatic music) Is that drawing supposed to be me?

No.

WOMAN: The 999 call came from this address.

So, how'd your exam go?

Um, I don't know.

I didn't finish, but, um, I'm sure it'll be fine, no?

Okay, I know some of you have to get off, but I have to remind you that we have had another two burglaries in the last 24 hours.

And in both of these instances, the victims were assaulted despite putting up no resistance.

Is this the same guy?

Could be, they use the same methods to gain entry, but once they're inside, their actions are escalating.

(crashing) So, two weeks ago they fled when challenged.

Last week they made threats, didn't carry them through.

Now, they've graduated to ABH.

What next?

Warnings have gone out to the local press and the radio, and the community officers are speaking to the elderly and the vulnerable about home safety advice.

(meow) We have to catch who's behind this.

Ticking time bomb.

(suspenseful music) (soft music) Five stab wounds, severe blood loss.

Which is the cause of death?

I have no opinions till the PM's done.

And the time of death?

I don't guess.

I don't get it wrong.

-The victim... -Tyrone Walsh.

Yeah.

He called emergency services at 7:32 tonight, and the first officers found him dead at 7:38.

So go on, take a chance.

Above my pay grade.

And how'd the killer get in?

How does your burglar usually get in?

My burglar?

The one you can't catch.

My burglar likes to pick locks.

What's with the cushion?

WOMAN: Will somebody tell me what's happened?

Is that the wife?

SOCO: Yeah.

(dramatic music) (door clattering) WOMAN: Let me in please.

(door slams) (woman upset) My nan could force that lock.

What you need is a British standard five lever mortise.

I'd also get some sash jammers.

Oh, this is my son.

Hey.

Cameron was giving me some advice.

Community support.

I can see.

I'll leave this with you.

You've got my number if you need anything.

You take care now.

What are you talking to him for?

Come to me if you want security advice.

He was friendly.

-What's that mean?

-I haven't seen you for weeks.

-Yeah, well, Dad... -I know, you're understaffed, you told me.

That's what I have to keep telling the band.

(knocking on door) Yeah?

-Ma'am.

-You're early.

Yeah, I was looking through the active case notifications for yesterday and I... -Take a seat, I wanna talk to you.

I got your National Detective exam results back.

You didn't pass.

(dramatic music) I get a re-sit.

Yeah, just the one.

Failing that, I'll be back in uniform.

Chloe... you've got it all up here.

You have.

You just have to channel it and think, think before you write.

-Morning.

-Morning.

I've got some basics back from last night, from Tyrone Walsh.

Yeah, me too.

Let's mix and match.

So, he's 37 years old, works as a schools inspector.

And he was stabbed five times.

999 have got a time of death, haven't they?

Yeah, it's around 7:35 PM.

Uniform are checking dash cams, doorbell cams, talking to neighbors, et cetera.

Nearest and dearest?

Only really his wife, Tilly Walsh.

She volunteers in a local charity shop.

No convictions.

At the time of death, she was playing badminton with three friends.

Um, she's seen on CCTV, half a dozen witnesses.

Right, well I've got this from comms.

RESPONDER: Which emergency?

(breathing down phone) Which emergency service do you require?

TYRONE WALSH: Yeah, I've been stabbed.

Aargh...oh... (groans) It cuts out there.

Also, pathology were on this all night.

Tyrone Walsh didn't die from stab wounds.

He was asphyxiated.

They found fibers from a cushion in his trachea.

Smothered and stabbed, so, we're dealing with a psychopath.

Yeah.

Chloe, uh, what did you... what did you come in to talk to me about?

Yeah, so, one of the active case notifications from yesterday involved Tyrone Walsh.

-Mm-hmm.

He called to complain that when he was investigating Hillworth free school, his car was vandalized and the headmaster made death threats.

Oh, good spot.

Uniform paid the headmaster a visit, and he denied Walsh's accusations.

Well, now we have a lead.

(drums playing) Hello everyone.

It's Marvelous Marvin.

(exhales) Hello, I am calling regarding the hire of one of your tutors.

(upbeat music) Percussion.

Yes.

Preferably male, late 40s, early 50s.

Thank you.

I look forward to it.

(Kafka yaps) Yes, good boy.

(Kafka yaps again) Yes, good.

(door opens, closes) What about this one?

-PROFESSOR T: Aunt Zelda?

Oh, come in.

(Kafka barking) What has got into Kafka?

I've been showing him pictures of strange men, encouraging him to growl.

I'm not a strange man.

Strange enough.

Oh, we had a visit from a charming community police officer, didn't we, boy?

Oh, yes, you remember.

(Kafka growls, barks) Apparently there's been a spate of burglaries.

And as a consequence, you decided to purchase this... pepper spray.

(Kafka barks) Better be safe than sorry.

Do you think a burglar will wait while you rummage for your spectacles and squint at the instructions?

I don't squint.

(Kafka barks) Any self-respecting house breaker will relieve you of your weapon and use it against you.

I am confiscating this doubtless illegal contraband.

Darling, why are you here?

(scoffs) To warn you about the break-ins?

Oh, you're such a softy.

Looking after your old auntie.

Wish somebody would break in, relieve the boredom.

Is Peter Snares a thing of the past?

Peter Snares is very much a thing of the present, but he's not here.

Hm.

Well, we can all be grateful for that.

(growling, barking) (playful violin music) (background chatter) No lecture today.

Not why I'm here.

Yeah, we've got an odd one.

Victim stabbed five times, then smothered to death.

It's like what you were saying yesterday, rare for someone to use more than one method.

So, we're probably dealing with a psychopath.

I wish I'd made notes now.

Um, okay, so, we don't know if he's a psychopath.

What did you say?

A...sadist.

Yeah, someone who takes pleasure in it and will very likely... kill again.

You should have called me.

I did.

Yes, you did.

I must have ignored it.

Ah.

Dr. Goldberg is proposing a follow-up session tomorrow at 11 a.m. Great.

You have a suspect?

Yes.

I've just seen your Professor, Zelda's nephew, talking to a... to a chap out there, sort of tall, upright, brigadier type.

The Dean.

Are they related?

No.

You spend long enough with somebody, you start to look like them.

Like you and your dog.

-Oh, dear Towser.

I thought we might try the French on...on Wheeler Street, Zelda and I had lunch there, it was... it's really rather good.

-What's this?

Oh, well, you know, it's never too late to learn the nuts and bolts of something new.

Are you trying to impress Zelda?

Well, you know, she's a challenge.

I rather like that.

She's a man eater.

And I plan to be the main course.

(dramatic music) Mm, oh.

(gulps) (children shouting, chatting) (girl giggling) Headteacher's name's Ash Robertson.

Oh, he's the one made the threats.

But the main suspect is your prolific house breaker?

-Yes...to both questions.

-Yeah.

Keep all lines of inquiry open until the facts tell you otherwise.

Can we talk about the, um... Oh, the killer left the cushion under the victim's head.

Guilt?

Possibly guilt, or some sort of fetish.

Perhaps done purely to confuse.

Jane Toppan... (knocking on door) ...often made her victims more comfortable, giving them extra pillows, quilts.

Jolly Jane.

She was a nurse.

Confessed to killing 31, committed to an asylum.

I'm glad you're on our side.

(giggles) ASH: Come in.

Where were you between seven and eight yesterday evening?

Seven and eight?

I was at home.

Why?

Tyrone Walsh was murdered last night.

My God.

Oh, God, that's awful.

You threatened him.

I didn't threaten him.

No.

This is so typical.

I don't...I don't want to speak ill of the dead.

Do... speak ill of the dead.

You see it with kids.

The bully accusing the victim of bullying.

Tyrone Walsh loved power, and he loved to punish.

But not every school received a negative report.

Of course.

Traditional schools were usually outstanding.

He had a cultural bias against alternative education.

And if you challenged him about it, he'd accuse you of attacking him.

Who vandalized his car?

I don't know.

Maybe some of the pupils.

Fugitives from Apple Tree.

Apple Tree?

A school like this one.

Walsh closed it down.

Headteacher funded it, he lost everything.

Savings, school, family.

(tense music) Maybe it's him you should be talking to.

Harman Redpath.

The school I went to got shut down, I had to travel for miles after that.

It put me right off.

Is that why you failed your NDE?

Harman Redpath, flat 45.

(buzzer rings) DCI Goswami said I should be kind to you today.

Is this your idea of kind?

(intercom) Who is it?

Hi, it's the police .

Um, I'm DS Winters.

We need to speak to you.

(door buzzes) Thanks.

Right.

You have supplied yourself with a ready-made excuse.

When you fail next time, we shall blame the education system.

I'm not gonna fail next time.

Good.

I went to see Casablanca last night, I think it started about seven.

Can I ask why you're here exactly?

Uh, we're here because Tyrone Walsh had an impact on your life.

Oh, I don't blame him.

If it hadn't been him it would have been someone else.

You opened your own school, funded it out of your savings?

-Yes.

Then you must have lost a lot of money when he closed it down.

I wasn't doing it for the money.

Why were you doing it?

My education as a pupil wasn't great.

I thought I could make a difference to children's lives.

I tried.

(dramatic music) I was out of my depth.

-Well?

-I have an appointment in 15 minutes.

Is he a suspect?

Until we have information that discounts him, of course he is.

-Seriously?

Do I strike you as one given to capers and tomfoolery?

Dean?

Miss Snares.

I couldn't help noticing, (crow caws) between you and Professor Tempest there seems to have been a thaw.

A thaw?

A détente, like Trump and the little rocket man, all chummy.

What's changed?

-Nothing's changed.

-Oh, come on.

You know I'll get it out of you.

Once I'm in sleuth mode, I never stop until my quarry is bagged.

You might as well tell me now.

Oh, very well.

There's been a...a shift, shall we say.

-Caused by?

-A realization.

And, I might add, you've been slow on the uptake.

This all happened months ago.

What sort of realization?

Miss Snares, some things, despite what the idiot emperors of social media would have us believe, are private.

(car rumbling) Hey, how's it going?

-Dave?

-You what?

I was informed that my first lesson would be with someone called Dave.

-Oh, Dave.

He, um, couldn't make it.

So, he asked me to sit in.

I trust you are proficient in the percussive arts.

I can play a bit.

In that case, follow me.

I'm Lydia, by the way.

I am pleased to make your acquaintance.

(rhythmic drumming) I was unaware my drums could do that.

Hm.

Disentangle the old chakras.

So...what do you want to get from this?

You want to join a band or more of a spiritual thing?

I was hoping to derive some therapeutic benefit.

Okay.

Pretty bunched up sort of guy.

You got some stuff going on?

Come on, you can tell me, I'm your drum teacher.

I do.

Yes.

Uh, stuff.

Okay.

Your go.

Let's see...what you got.

You gonna play with those things on?

I would prefer to, yes.

I have been attempting to tutor myself by the way of short films via the internet.

The relentless enthusiasm of the instructor...

Play some drums, mate.

(clangs cymbals) (beats a few drums) What are you stopping for?

That's it?

Mm-hmm.

That's it.

Bring the bass in.

(drumming becomes more rhythmic) Ha-ha-ha, woo.

(dramatic music) Yeah.

See?

Woo.

Getting looser already.

Problems floating away.

Wilfred and Adelaide.

(dramatic music continues) Well, well, well.

Oh, (clears throat) hi.

Oh, yes.

Hi.

-Hi.

I'm Lydia.

-I'm Helena.

I'm...

I'm uh, uh, an...an acquaintance of Jasper's.

Hm.

I'm his drum teacher.

-Remarkably therapeutic.

-Hm.

Oh.

As I suggested it might be.

Well, um, lovely to meet you.

You too.

(footsteps receding) Well, she didn't like me.

No, she does not.

(laughs) She thinks I'm gonna lead you astray.

And you know what?

She might be right.

(laughs) See you next time.

(gate clangs) (soft music) Right, listen up.

Uniform have unearthed something useful.

Magdalene Craron, she's a neighbor, lives across the road from Tyrone Walsh.

A couple of nights ago, she saw a car she didn't recognize parked up.

Because of the burglaries, she took down the registration number.

Turns out the car belonged to Ash Robertson.

Oh.

I'll leave that with you.

I lied because I didn't think it was relevant.

We'll decide what's relevant.

I was embarrassed.

Why?

Because I went to his house to apologize.

I sat in my car, I realized I'd be giving Walsh exactly what he wanted.

I went home.

DS WINTERS: Why were you so quick to deflect attention onto Harman Redpath?

As you said, he's the one you should be talking to.

I was making a point that it wasn't just me that Walsh had angered.

I did not go into his house.

We're gonna hold you here for further questioning.

What?

You're keeping me here?

We have the right to detain you for 24 hours.

Okay Professor, tell us what you're thinking.

Our mystery burglar is our main suspect plus two others, Ash Robertson and Harman Redpath.

We have five incised wounds rendered utterly obsolete by an act of asphyxiation.

Chaos.

Indeed...and we must apply our own version of chaos theory, which teases out the patterns in seemingly random states of disorder.

Right.

We found no traces of Ash Robertson at the Walsh House.

So, I think we've got to assume the burglar has stabbed Walsh and left him for dead.

Yeah, and gone looking for valuables.

Yeah.

Heard him make a call... Maybe came back, put the cushion over his face to silence him.

DS WINTERS: Yeah.

(pensive music) Held it there long enough to kill him.

DCI GOSWAMI: Yeah.

PROFESSOR T: Assumptions.

A veritable plethora.

(sighs) What have we ignored?

What have we dismissed as insignificant?

Harman Redpath owns a lot of DVDs.

Box sets from a charity shop.

Tyrone's wife, Tilly Walsh, works in a charity shop.

Okay.

Anything else?

Tell the pathology lab to augment and analyze the emergency call.

Was there a second voice?

Who says I have been stabbed?

-Walsh.

Probably, but that is one more assumption.

We know when Tyrone Walsh died, we do not know when he was stabbed.

(dramatic music) (wind chime clinking) (suspenseful music) (lock clicks, door opens) (scraping) (sinister music) (crow cawing) (door opens) Come in, sorry.

Yes.

Could you send somebody over please?

Y-yeah, okay.

And you've got my address.

Alright, thanks.

The bank.

They refuse to believe that I don't have any money.

Tyrone used to handle all of that.

Have you not got your own account?

A credit card?

Before I got married, yes.

After that...

Your husband took care of all that.

But never left me short or anything.

In the charity shop, uh, did you have any regular customers?

Yeah.

Hundreds.

Any that you knew well?

No, just hello, goodbye.

That sort of thing.

Would you like a cup of tea?

-No, no, I... Could I get the names of all the friends you play badminton with?

Yeah, yeah, I'll write 'em all down for you.

(phone rings) Hi, dad.

BOB: (whispering) I can hear somebody downstairs.

I can't hear you.

(sinister music) I can hear somebody downstairs.

-You sure?

-Course I'm sure.

Somebody's broken in.

-Okay, don't panic.

Um, I'm two minutes away.

Just call 999 and then call me right back.

Okay?

(engine roars, tires squeal) (high tempo music) (tires squealing) (sighs) He's late.

Your offer to Dan to attend some lectures, did he take you up on it?

He was there two days ago.

Do you think he got much out of it?

No, he got nothing out of it.

Oh.

DS Winters is an instinctive detective.

Attending lectures may very well dull his natural ability.

So, why did you suggest he attend?

To make him realize that a degree in criminology is not necessarily an advantage.

And maybe to stop him trying to do Lisa's job as well as his own.

I thought that went without saying.

You really care about that young man.

I care about solving crimes.

The functionality of the team.

One more minute, and I'm leaving.

Dan, finally.

You got me worried.

I kept this handy.

Is he alright?

Well, he's breathing.

I'll call an ambulance.

-Dan!

(whack) -Argh.

Oh.

(high tempo music) Leave him.

He's dangerous.

(wind chime clinking) Hey!

Hey!

Oi.

-Ma'am?

-What's up?

Harman Redpath lied about his alibi.

Right.

He said he went to see Casablanca at 7 PM, but I've checked, the projector broke, the whole thing was canceled.

Tyrone Walsh was the one who closed Redpath's school.

It's what bankrupted him.

It's what ended his marriage.

Right.

Dan will be back in an hour.

It's good.

(sinister music) (ominous music) (bird wings fluttering) (breathing heavily) (glass crushes) (thud, struggling) You're not such a good boy now, are you?

Eh?

Huh?

Have you got him?

(burglar coughs) Yeah, I got him.

(suspenseful music) (coughing) Your favorite cop.

Cameron was giving me some advice.

Community support.

I can see.

You're wearing uniform.

(Velcro rips) People have died wearing these.

Huh?

People have died wearing that!

-Dan!

-People have died.

Dan, you've got him, son.

You've got him.

(dramatic music) You do not have to say anything, but it may harm your defense if you fail to mention when questioned something which you later rely on in court.

Anything you do say... Ah...

I thought I might find you here.

Yes, I come here to be alone.

I've been trying to catch you, tout seul, as it were.

I have a question.

A tad delicate.

It concerns your aunt and Miss Snare's father.

You're probably not aware of this, and of course there's no reason why you should be.

But many years ago, your Aunt Zelda, and I had what we might call a moment.

A moment?

We'd been seeing something of each other and I, perhaps over hasty, made my intentions known.

And Zelda, alas, didn't share them.

-Hm.

-Dean?

Phone call.

(up tempo drums) I suppose what I'm wondering is vis-a-vis your aunt and la père de c'est dame ici, should I retire from the crease?

-What?

-Nothing.

We're being assailed by a rather large vespid.

God.

It's a monster.

Sounds like my old Fiat.

Uh.

Don't move.

Ow.

You've been stung.

-Did you get it?

-I don't know.

I'm going to fetch some bicarbonate of soda.

Bicarbonate of soda is for bees, vinegar for wasps.

Oh, there's the culprit right there.

Oh.

No, no, that...that is a parasitoid wasp.

It does not sting people.

Well, I'm pretty sure I can see a sting.

It stings other insects.

Well, if it doesn't sting people...?

Its sting makes other creatures change their natural behaviors.

CAMERON: The only thing I'm admitting to is is the break-in on Washington Street.

And don't worry, I'll be pressing charges.

Your old man's a psycho.

(laughs) You've left an evidential trail 40 miles long.

Every house you broke into you previously visited.

Under the pretext of giving safety advice, you were casing the property.

You used the same technique for every break-in, every time.

DS WINTERS: Including the house where Tyrone Walsh was murdered.

No.

Never there.

(scoffs) Can you bring in the trophy please?

(door opens) Thank you.

I won that.

Oh, did you?

Ladies' Singles Badminton Championship 2015.

Well done.

What has been said?

He's pretty much denying everything.

Oh... it's probably not relevant, but Harman Redpath lied about his alibi.

DS WINTERS: That was stolen from the property where Tyrone Walsh was stabbed and smothered to death.

How do you account for it being recovered from your flat?

Okay...

I put my hands up for the break-in.

I swear to God I never stabbed anybody.

So, the CPS are satisfied that we have got enough to charge Cameron Heath with 14 breaking and entering and one for murder.

And a jury will convict.

There is just one problem, Cameron Heath did not murder Tyrone Walsh.

Okay Professor, let's work with that.

Just...can you give me some reasons?

The underlying pattern is refusing to emerge.

I need to see the crime scene.

And I'll organize that for you, but... can you tell me why you're so sure that Cameron Heath isn't the killer?

Your investigation has raised certain unanswered questions.

DC Highsmith exposed Harman Redpath's alibi as false.

Er, Tilly Walsh's relationship with her husband... Cameron Heath is a psycho, right?

Just look at his arc.

He gets a thrill from breaking and entering.

Right.

A bigger thrill from scaring people.

Physical violence shifts the dial a little bit more.

What is the next logical step?

Murder.

I have studied the evidence in connection with the recent series of break-ins, and you are correct to note a disturbingly rapid escalation in violence.

There is no doubt that the pleasure Cameron Heath derives from seeing fear in vulnerable people makes him capable of stabbing someone to death.

There is no doubt that he has it within him to happily watch someone die from asphyxiation.

However, he would not do both.

(dramatic music) The leap from actual bodily harm to this most uncommon form of homicide is implausible.

He was in the house the night Tyrone Walsh was murdered.

Alright, the CPS think we've got enough... Do the CPS believe that Cameron Heath, after committing this grizzly murder, placed a cushion underneath his victim's head?

Well, maybe he did it, so we'd be having exactly this conversation.

Like you said, purely to confuse.

Whoever placed the cushion underneath Walsh's head in some futile act of contrition is not the same person that stabbed him.

So, what does that mean?

It means we need to revisit aspects of this case.

It means that the stabbing occurred some time before the asphyxiation.

And most importantly, it means that you are not looking for one killer, but two.

MISS SNARES: That looks delicious.

Hm.

I can assure you, it's not.

Do you mind if I ask you a personal question?

You can ask.

I won't guarantee to answer.

Were you and Adelaide Tempest ever an item?

An item?

(cutlery clanks) You know.

Yes, I'm well aware of what you mean by an item.

(sighs) No, we were not.

But did you ever...?

What?

(cheeky music) Err... What?

(whistles) Oh... Mm-hmm.

(giggles) Err... Ooh-la-laa.

(music stops abruptly) Of course not.

What a suggestion.

(chair scrapes loudly) (footsteps receding) (playful music) Dan.

Oh, Prof wants to meet at the Walsh house.

He'll have to wait.

We've had a development.

Redpath's prints found at the crime scene.

Harman Redpath?

-Really?

-Yeah.

-Hello?

-Is this the door that was broken into or...?

Who are you?

My name is Professor Jasper Tempest.

I work with the Cambridgeshire Police.

It was the back door.

I am meeting DS Winters here.

May I see inside?

You look happy.

I was.

That was taken on our first date.

Hmm.

HARMAN: I didn't deliberately lie to you.

I...I...I got my dates mixed up.

I...I went to see Casablanca the night before.

Your fingerprints have been found on the dining room table at the Walsh house.

Well, you don't have to answer.

That is true, but you need to consider how you choosing not to answer will look.

I think I can answer that question.

Um, you know I had a school.

DI WINTERS: Yeah, Tyrone Walsh closed it down.

Yeah.

And when I knew the school was in trouble, if it went under I...

I saw Tyrone Walsh's wife at her work.

-The charity shop.

-Yeah.

It's stupid, I know, but I asked her for help.

And she invited me to her house to talk to her husband.

-Did you?

-Well, no.

He wouldn't come downstairs.

I had a cup of tea and left.

When your husband was killed, you were playing badminton.

Yeah.

The burglar stole your trophy.

Wasn't worth much.

Sentimental value, perhaps?

I suppose so.

I think your DS has got lost.

What sort of racket do you use to play badminton?

What sort of racket?

A Dunlop.

-May I see it?

-It's at the club.

-In your sports bag?

(door slams) (exhales) (dramatic music) It's just the wind.

Do they have lockers at the gym?

Do you think you might be able to come back later?

Is that where you usually keep it, in a locker?

-Not usually.

-Then why did you leave it at the club?

You get a call saying there are ambulances and police at your door, you're not exactly thinking straight, are you?

Yet you had the presence of mind to take a bag you usually bring home, and stow it safely in your locker?

(tense music) Like I say, I wasn't thinking straight.

Hm.

He's not coming.

Your DS, he...he isn't coming.

I'd like you to leave.

I was stung earlier today.

I believe the culprit to have been a parasitoid wasp.

Are you familiar with their behavior?

What are you talking about?

I am talking about a malign influence.

These wasps, they sting spiders, and when they do, they lay eggs.

The sting makes the spider change its behavior.

Instead of a web, they spin a safety net for the larvae to fall into once they have hatched.

Now you're scaring me.

Someone changed your natural behavior.

Will you just leave?

And you passed the virus on to Harman Redpath.

(pepper spray hissing) Aah.

(cries) (coughs & splutters) (solemn music) -What's going on?

-Should this be illegal, the blame lies entirely with my aunt.

(coughing) (siren wailing) Harman Redpath saw Tilly Walsh being brought into custody.

Suddenly he wants to make a statement.

Mm.

He will claim that he stabbed Tyrone Walsh and then smothered him, thus, taking the blame so that Tilly Walsh might go free.

A search of Tilly Walsh's locker will uncover either the knife she used to stab her husband, or, uh, traces of his blood.

Her own locker?

Well, she is not by nature a criminal.

I stabbed him.

And then when he dialed 999, I smothered him.

Why did you do that?

He destroyed my school, my marriage, everything.

And what did you do with the knife?

Threw it away.

We found traces of her husband's blood in Tilly Walsh's locker.

We believe it came from the knife.

You can't help her.

DCI GOSWAMI: Tully showed you kindness, but she also used you, Haman.

The forensics will prove that she stabbed her husband.

Don't make this worse.

(ominous music) Her husband was a sadist.

I saw the pleasure he took closing down my school.

She had to live with that every day.

I'm telling you about the day I've had, and all you can say is, "I'm going out later."

I'm sorry.

You have got to be joking.

What?

What?

We've been burgled.

-No.

-Did you set the alarm?

I, I think so...I...

Did you set the alarm like I told you?

But I always do.

It's something... Oh, you must be some kind of...no, you didn't.

-I did.

-No, you did not.

-I remember doing it.

-Oh, you're such a liar.

Don't ever... (hard smack) (sinister music) What have I said to you about lying, hey?

Now, look...absolute state of the place.

HARMAN: Tilly called me from the payphone at the gym.

So that we wouldn't make the connection.

Yeah, well, Tyrone never let her have a phone.

She was really upset.

All she asked me to do was go to her house, pick up his phone, and dial 999.

-To give her an alibi.

-Mm.

Yeah, make it look like the time of death was later.

She told you she stabbed her husband?

Aargh.

(solemn music) Aargh.

Uh... Aargh.

Yeah.

Ah...I've been stabbed.

Aaargh!

Aah.

Aah.

(struggling) Aah.

Aah.

DCI GOSWAMI: Why you?

Why did she ask you to help her?

She knew I'd understand.

We were both victims of the same man.

God.

(ominous music) -See you tomorrow.

-See you.

-CPS are very happy.

-Good.

One murder, two confessions.

Say thanks to your dad.

Tell him never to do anything like that again.

I've already told him.

What does he drink?

Red or white?

Actually, he's more of a beer man.

Okay.

Tell him he's in for a treat.

I will do.

Cheers.

-Night.

-See ya.

And you did well there.

Spotting the connection between the killers.

What?

Think I don't notice these things?

(choral singing) I never pressed him on his loss.

A young detective, she was killed in the line of duty.

Some sessions we're almost totally silent.

But... that was when communication was most intense.

Yes.

At times it felt as though I was absorbing his pain.

(laughs) Which is exactly the sort of spiritual nonsense I've always rejected.

By not expressing his pain, he put the onus onto you.

I saw him today, you know, he was with another... another therapist of sorts, a...a drum teacher.

Stunning looking woman.

Sounds as though we're approaching classic counter transference territory.

Oh no.

(laughs) No.

Really, no.

I'm not jealous because this woman was attractive.

You're concerned that her therapy might prove more efficacious?

Well, I don't want this client to be sidetracked.

We had a breakthrough.

Which disrupted.

I know.

Well, I'm...I'm not the sort of person who likes to leave a task unfinished.

What is it that you would like to achieve... with this client?

I'd like to help him to re-embrace the changes he made, and then sign him off.

Hm.

(uplifting music) (drumstick clatters) (exasperated sigh) Look, I'm duty bound to tell you that I've had a phone call from DS Winters.

He's concerned about your safety.

Apparently, since you started assisting the police again, you've twice put yourself in a position where you could have been killed.

And I'm...I'm worried that you're subconsciously punishing yourself for what happened to Lisa.

Now if you don't address this issue, symbolized as you know, by the gloves, you're very soon gonna find yourself in a situation which you can't walk away from.

(rapid tapping) (light music) What have you done?

Um... on the advice of my percussion tutor.