Original subtitles

James didn't just vanish.

He left breadcrumbs, coded messages, a puzzle.

I didn't want to see DI Neville transferred any more than you did

but, after all that Sinclair business, there was no other option.

I'm looking for Matt Neville.

He lives here.

He did. Moved out a month ago.

The first page has been torn out.

"Sinclair". And look at the bottom.

"Zieg R".

Roger Sinclair, disturbed a burglar who then killed him

in a panic of self-preservation.

Something has changed.

There's even an arrest!

And look who signed off this one.

DCI Taylor.

Ah!

Sh.

Can you hear that?

Woo!

The acoustics in here are... ♪ Wonderful! ♪

Do we have any opera singers amongst us that

maybe want to try hitting the... ♪ High note? ♪

Right, come on. This way.

The actual date of construction is unknown, of course -

it's not called the Dark Ages for no reason.

Speaking of which, why is this curtain closed?

OK, you're going to love this next bit.

Nobody knows if it's an architectural fluke

or God's own design, but every afternoon the sun hits

the stained-glass windows hidden behind those curtains,

and this entire place is treated to a light-show

that would put a disco to shame.

Argh!

Do you know who she was?

Yes, sir.

Meghan Rowlands. 21. American, post-grad.

Also the morning tour guide. Really?

Yeah. Then where's her group?

Presumably she had a group. Where are they?

Did they just leave without their tour guide?

Oh, oh, Chief... I actually think that is exactly what they did.

They run two walking tours a day.

A full circle of Cambridge, always starting in the square

and ending here.

This is basically the last stop.

They're given some spiel about the history of the place,

then basically left to wander and leave of their own accord.

Well, then she must have had to come back for some reason,

forgotten something - her bag maybe?

She had it on her when she died.

Look, I mean, it obviously didn't happen whilst they were still here,

otherwise someone would have seen.

Perhaps.

Perhaps not.

Sir?

Well, whatever they witnessed, they were the last people to see

her alive and we have no idea who they are or how to find them.

Oh, actually, Chief, they had to fill in their email addresses

when they bought the tickets, so...

Ha-ha! God bless mail list marketing.

All I'm saying maybe we should, you know, keep an open mind here.

What's happening now?

You fill him in. I'll... I'll go do some more digging.

Fill me in on what?

I thought it would be a good idea to employ a member of Gen Z

to do a deep dive on this Roger Sinclair chap.

And now I rather wish that I hadn't.

Sinclair was a conspiracy theorist - and a pretty batty one at that.

Course, you can imagine how Henry's taken this.

He's now got his father single-handedly

fighting the Illuminati.

I highly doubt he believes that.

Really? It makes his father the hero.

Isn't that what every boy wants?

How was your day?

Someone murdered a tour guide in a church.

Yes, no, sorry. I meant,

"How was your day in terms of our investigation?"

Right, yes, sorry.

Well, I've actually been looking over the original crime scene report

again, and everything about it seems...

No, John, you've read that over and over again.

What you were supposed to be do today is get closer to DI Carter.

I really wish you'd stop phrasing it like that.

It sounds like I'm supposed to go camping with him or something.

Look, I... I tried, OK?

I did exactly what you said.

I found my moment and attempted some...

..non-work related casual conversation with him.

No phone.

Given her age and occupation, that's a bit...

That's a bit strange. Holly, do you think you could get a...?

Already found her. She's got an active phone contract.

Ooh, we should grab food whilst we can.

Oh. Yes, together.

Good idea. Let's do that. Let's... grab food.

Do you follow... football at all?

And apparently he does.

Liverpool FC.

He's a season ticket holder.

What?

John, this Russell character magically appeared at the exact

same time as James vanished.

He's taking personal calls from Chief Constable Ziegler,

the one person that we do know is involved in all this,

then he lies to you about it,

and despite all that we know nothing about him.

I'm sorry, but supporting Liverpool does not quite cut it.

You'll be asking him what his favourite colour is next.

It's probably red. No, John, it doesn't matter.

It doesn't help us.

Look, what we need is personal information - who he is,

where did he come from? What's his connection to Ziegler?

I mean, you spend eight hours a day with him.

You need to tease out some kind of backstory.

I mean, you're the one that's supposed to be a genius round here.

Two points above actually,

but I find that never helps

when it comes to... chatting.

Couldn't you do a high dive on him?

Oh, I tried that. It turns out he's got an even less of

an online presence than...

..well, you.

I have been looking into their supposed burglar,

this guy they arrested, Rhys Bowen.

He lives with his mother up on Heywood Rise.

Actually she's started a crowd-funder for his appeal.

See?

£10?

That's not going to be anywhere near enough.

Now, ah, listen - and don't say, "No," OK?

I'm not committing to that. I don't know what you're going to say.

Well, does it matter? I've told you not to, so you can't now.

I really don't think that's legally enforceable.

I'm going to go and visit her tomorrow.

It's fine, it's fine.

I've planned it all. I'm going to say that I am a local journalist

covering her story, and she might arrange for me to meet her son.

What? In prison?!

Well, no. I thought they might let him out on a day release

and I could see him in a local Costa.

Yes, in prison.

It's no more dangerous than what you're doing.

Yes, but it doesn't matter what happens to me.

Of course it does.

Not as much.

That's very sweet, John. Thank you.

I'm still going, though.

What if I said more reasons why you shouldn't go?

I'd probably tell you that I'm not discussing it any further.

That does sound like something you'd say.

Pity, because I had some really good ones.

Guv.

Ah. Thanks.

Oh, there's sugar in it!

Ah... Yeah, there is.

Which, as you know, is exactly how I like it.

Cheers!

Good news, Guv.

Every single one of the tour group replied overnight.

We have names, addresses, everything.

Oh, I was hoping one of them wouldn't,

cos that would've meant that they were probably the killer.

Right, well, in that case, bad news, Guv.

We've identified all the suspects.

Mr and Mrs Tate live locally.

The tour was an anniversary surprise, apparently.

And they say romance is dead.

Ah, Myles North and Yuna Chen, they're roommates and students.

They live near the college.

And these three ladies here are actually mother, daughter

and grand-daughter. They're over from France.

Erm, sir?

Morning. I'm going to be quick.

We're cribbing officers from every department.

I need three from you, the best you've got -

we're putting together an emergency taskforce.

For what, ma'am?

To find the missing son of a millionaire.

Oh, a kidnapping?

I wouldn't have thought so, Sergeant Finch.

The individual in question is Jordan Halshaw.

Oh...

Sorry to disappoint!

Oh. No, no, no, I wasn't...

I'd never... I wouldn't...

Oh, she's just always wanted to do a kidnapping.

Investigate one, I mean.

Ah, sorry, who exactly is Jordan Halshaw?

DCI Taylor, would you like to fill in our new DI

on the Halshaws of Cambridge?

Oh, of course, yes. Well, erm... They're, ah...

Well, erm... Perhaps Constable Evans would like the honour?

Oh, sure. Thanks.

Well, he's Cameron Halshaw's son.

Cameron Halshaw Developments? You've probably seen the signs everywhere.

Bit of a... Halshaw junior is a walking liability.

He's in and out of rehab, smashing up sports-cars

and often picked up with bags of cash he has no explanation for

nor any particular concern about being found with.

And his father has influential friends.

Three officers.

No complaining.

Is this the church murder from yesterday?

Talk me through it.

Who, me?

Well, I'm led to believe that you've been performing miracles

recently, DCI Taylor.

I'm certainly keen to witness it.

Well, OK, then. Er...

Well, the...

The young lady in question was found here, inside this alcove.

The curtain had been closed to hide the body

and we've already confirmed that the murder must have occurred

whilst there were other people still on or around the premises,

these people here, there are seven of them.

which creates a fairly traditional spatial puzzle.

Actually, in this case, it's a perceptual puzzle,

which is a sub-category of spatial.

It requires us to imagine the visual point-of-view of the killer,

or indeed the victim, put ourselves inside the alcove

and ask what you can see from that space,

which in turn, obviously, would tell us who could see them

and where they'd need to be positioned to do so.

In this instance, the positions are limited,

mostly thanks to medieval architecture's reliance

on columns, pillars, arches and grilles.

Blind spot...

..blind spot, blind spot, blind spot...

The puzzle is impossible.

Solving it would require there to be fewer variables than suspects,

which, as I've just demonstrated, is clearly not the case.

Any one of them could have done it.

I think we're going to need to find a motive with this one. Oh!

You haven't been looking into motives?

Well, they're very secondary, aren't they?

If you can demonstrate who did it and how,

then the why doesn't really matter.

Though, we obviously intend to explore them.

Obviously.

Erm... I really think we should head down to the control room now.

OK, I'll catch you up.

DCI Carter, could we...?

Um, yes, yes, of course, sir.

The why matters, Taylor.

Find it.

Which paper did you say you were from?

The Cambridge Herald.

Oh, I don't think I've heard of that one.

Oh, well, it's mostly online. Is that Rhys?

Yes.

I always thought he looked like an angel in that one.

I'm sorry.

It's all just so, er...

Do you have children?

Yes. Then, you know how I feel.

He was with me that whole evening.

You make sure you write that because I told the police,

but they wouldn't believe.

You alibied him? They didn't believe me.

Which detective did you speak to?

I don't know.

There were lots of different ones.

They kept coming for days, trying to get me to change my story,

but I wouldn't,

because he was here, that whole night.

We watched the soaps.

On what grounds did they arrest him?

They said there were fingerprints, DNA,

and that a witness had seen him leaving.

He pled guilty.

So, he confessed, but you...

You said he was here all night.

He was! It makes no sense.

Will you mention the Crowdfunder?

Yes.

Mrs Bowen, sorry to ask.

Had Rhys been in trouble with the police?

Was he in any kind of trouble?

Burglary?

Mm...

But he'd never hurt anybody.

Never.

They've made a mistake.

Would you like to take a photo?

Erm, perhaps with this?

Mm...

Mrs Bowen,

do you think there is any way that I could speak to your son?

You could come back tomorrow.

He calls every Wednesday.

He's, er...

He's quite striking, isn't he, Chief Constable Ziegler?

I mean, sure, I guess. Yes.

Very tall. Well, what do you think?

Yeah, he's quite tall, yes. We should probably...

What are you doing? I said, "Don't rub it in!"

I wasn't rubbing it, I was wiping it!

Well, don't wipe it either, you have to dab it, like this...

Mr and Mrs Tate, DI Carter.

Oh, yeah, I've got one of those, as well...

And this is DCI Taylor. Thanks for coming in. That's quite all right.

Yeah, although, so far, nobody's actually told us what this is about.

It's rather serious, I'm afraid.

We're investigating a murder.

Ah! There it is! Yeah.

See?

Oh... That's going to need dry cleaning.

Egg?

You have to hold it, Guv.

I am holding it.

No, hold the button in.

Hold it in, yes.

Sorry, I...

I have a different one at home.

I can't believe it.

How could anybody want to hurt that poor girl?

She was lovely, wasn't she?

American.

She had us laughing all morning.

Even him.

OK, then, erm... That's everyone, so, I mean, let me start

by saying that, no, your ears are not deceiving you, I am an American.

Er... Please don't hold it against me, I assure you, I'm not armed.

So, just out of interest, do... Do we have any locals here?

Yes.

You... You're from Cambridge? Yes.

What brings you on our tour today?

Oh, it's... It's our anniversary.

Happy anniversary. That's...

That's lovely... Not last minute, I hope.

And how about you young ladies?

Erm... I have Manon, I've got Tanya and I... I...

I've got Katya...

Excuse my granddaughter.

Oh! Where are you from? Paris.

Ah, and it's Myles and Yuna, right?

Where are you guys from? The Isle Of Man.

The Isle Of Man, OK.

Quite the cultural melting pot we've got this morning.

That is just the way I like it.

Well, then, shall we allez?

So, you say you were together for the whole tour.

Did anything seem off, at all?

Anyone acting strangely?

No, everyone seemed to enjoy themselves.

The couple from the Isle Of Man didn't pay attention,

just kept chatting and giggling to each other,

and one of the French ones was never off her phone.

They've got the attention span of a goldfish these days.

Too much internet.

I hate the internet!

Hate it!

So, what made you choose the tour for your anniversary, then?

I know what you're thinking, Detective.

30 years of marriage and what do I get her?

A £20 walking tour of Cambridge.

Each.

£20 each so, overall, you spent 40 on the gift.

Is that still quite low?

Well, we had agreed not to get each other anything.

My husband was made redundant late last year,

and he's only just started working again.

We've had a lean few months, that's all.

I always promised I'd get you a diamond ring for our 30th.

Well, save up for our 40th then.

Don't be so stupid.

I loved my £20 walking tour.

At least, I did.

I was going to buy a tea towel.

Sir?

Sorry.

They... They do a few photo-stops on the way round,

then whack the pictures up on a website,

where you can then get them stuck on a variety of merchandise,

including... tea towels.

No photos from yesterday.

It looks like they only upload them over the weekends.

Bit basic, aren't they?

Looks like they were done on a phone, which I guess confirms that

she would have had one on her. Has Holly got any further with that yet?

They're red-taping her,

but she reckons she'll have a call log by the end of tomorrow.

They did say, there is no sign of usage since, though.

It appears the phones been switched off.

Sir, the French women are here.

Come on then, Guv.

Well, I really hope you're not my Secret Santa this year.

What? No, it's... It's the case.

That's not a bad idea for Mum, though.

The plan is 22 cities in three months.

Right...

That's quite an expensive holiday.

Oh, er, we're not rich women, Detective, um...

My father passed away recently,

left us some money.

I'm sorry for your loss.

Don't be, we were separated -

and separated for good reason.

And as my beautiful daughter here is divorced

and my even more beautiful granddaughter

recently had her own heart broken for the first time,

I decided we needed some adventure in our lives,

sans-hommes.

"Without men".

Yes, I know.

So it's an Eat, Pray, Love thing?

Yes, Detective! Exactement!

I can't stop thinking about her.

She... She was my age, her whole life ahead of her...

OK.

Say, "Cheese!"

Cheese!

Lovely, one for the grandkids.

She was... happy,

bubbly,

seemed to love her job.

All right, ladies, we'll have some with the bridge behind.

OK, let me see those pearly whites.

In three, two, one...

Eee! Lovely!

The whole day was just, erm...

Nice, you know?

Right, do you remember the last time

you all actually saw Meghan Rowlands?

The last stop, the church, yeah, she was at the altar,

whilst we were looking around.

The altar, with the stained-glass window?

Yes, we went to look at the features and then, as we left,

she was gone, the curtain was closed.

You... You're sure about that?

The curtain being closed?

I know what a closed curtain looks like, Inspector.

Wait, does that mean she...?

She'd already been killed...

..whilst we were still there?

I...

Look, I...

I understand this sort of thing always comes as a shock.

She was my best friend!

Really?

What?

After one tour?

Is that normal?

No. Um...

Sorry, am I to understand that you knew Ms Rowlands prior to the trip?

Of course we knew her! We shared halls, last year.

But, according to...

You... You told her and...

And the group that you were visitors from the Isle Of Man?

Look, we'd often take her tour.

Any time she was short on numbers,

she'd text us to stand in.

I am so sorry for your loss.

If we'd known that you actually, er, knew her,

We'd, erm... We'd...

Can you tell me about the last time you saw her?

The church.

Now, erm, nobody really knows,

whether it was deliberately designed this way or not, and it...

It very much depends on the cloud coverage,

but under the right conditions,

from midday...

IE, a couple of minutes.

..the sun hits that glass

and this whole chamber becomes filled

with every colour of the spectrum.

It's quite something.

And that's it, I hope you all had a good time,

maybe learned something,

made a few memories.

Please feel free to wander and peruse at your leisure

and... thank you. Merci!

Meghan was stood under the magic window.

I remember one of the French women, the younger one,

she was going over to talk to her.

Bumped into that anniversary bloke.

Didn't even apologise.

Why did you even wander around?

If you were always taking this tour, you...

You must have seen everything that there is to see.

I like to play the organ.

Well, it's them. It has to be.

They're the only ones with a connection to the victim

and, from their own accounts, the only ones that were in there.

Oh, I'm sorry. Did you want one?

Not if I have to ask, no.

Connections don't matter.

The motive can't predate the tour.

Do you know what? I always share mine with you.

DC Evans, do you mind?

Guv, what do you mean, "The motive can't predate the tour"?

Well, it wasn't planned in advance, was it?

People who plan murders in advance

don't commit them in front of six potential witnesses

and then write their email address down for good measure.

No. Whatever the motive was,

it formed during the tour itself.

What could possibly happen during a two-hour walking tour

that could turn someone who wasn't a killer at the start

into one by the end?

Chief Constable Ziegler was at the station today.

He and DI Carter talked privately.

What about?

I don't know. I couldn't think of a way of asking.

How about, "What were you and Chief Constable Ziegler talking about?"

Oh...

Would that have worked?

Did you tell him?

Ah, no sweetheart. He's only just...

The burglar, he's innocent.

He was with his mum the entire night.

That's what she told me, and the police but they didn't believe her -

or claimed not to.

Next thing she knows, he's signing a confession.

So he pleaded guilty?

Well, they always do. Have you never seen Making A Murderer?

No.

I did see Crimewatch once.

Never again.

Oh, John, it was awful.

She thinks I'm a journalist working for a newspaper

I've completely made up, thinks it's going to be in the press,

thinks someone's actually going to help her now.

But you are helping her.

It's the same as Dad was.

I mean, it's obvious what's happened, isn't it?

This Sinclair guy, this blogger, he was about to break a story,

a BIG one, but they got to him first. Who did?

I don't know, the government,

the royal family, the Freemasons.

They killed Sinclair, they framed Bowen

and, when Dad wouldn't drop it, they started coming after him.

That all seems a bit...

..big.

Of course it's big.

It has to be big, doesn't it?

Dad wouldn't just abandon us if it wasn't.

Of course he wouldn't.

"Freemasons"?!

I know. He doesn't actually believe that.

He's just looking for a bit of hope from the man of the house.

That's you, by the way.

Oh, I see.

What should I have said?

Rule of thumb, whatever you think they want to hear.

You mean, lie?

Yeah, God, if it makes them happy, yes, lie your pants off!

Like I did today.

I am helping her, aren't I, John? I mean, ultimately.

I mean, I know we're trying to find James, but...

..maybe, by doing that...

..we actually get an innocent man out of prison?

I thought he was a burglar.

I mean, yes, you...

You are helping.

And I say that with my pants still very firmly on.

That's reassuring on multiple levels.

Can I help you?

This is mine.

No, it isn't. I've had it since I was a little kid.

Dad gave me it.

Yes, our dad gave it to us.

Me and James, we shared it.

I was obsessed with this thing,

particularly after Dad left.

Never put it down.

Until your dad took it away from me and hid it.

Why'd he do that?

As a kindness.

He knew that our dad was never coming back.

Same as I know that yours is.

How?

Because I'm in the unenviable position of knowing the difference

between a father that loves his family

and a father that didn't.

Uncle John, how come you never got married?

I left it too late.

Morning! Morning.

Why are you pretending to yawn?

Good question.

Oh, morning, Guvs. Did you hear they found Jordan Halshaw?

The missing millionaire's kid?

Yeah. Fished him out the Cam this morning. Looks like he drowned.

Apparently, he'd been camping out

in one of his dad's old developments,

the empty office block they're renovating on Mallard's Way.

They found a sleeping bag, takeaway wrappers, drug paraphernalia.

I can't say I'm surprised.

Yes, but do you know who notified the family?

Chief Constable Ziegler.

In person.

Have you ever heard of that before?

Well, whatever the Chief Constable chooses to do is his business.

Ours is this.

I don't suppose you had one of your "eureka" moments overnight, did you?

No, I didn't. Did you?

I don't tend to have them with quite the same frequency as you do,

but I do think the missing phone has to be important somehow.

Maybe that was the motive.

The acquisition of her phone?

Why? Was it a particularly nice one?

Sorry?

Ah, Holly, excellent timing.

This phone of Ms Rowlands, was it nice?

Was it what? I don't know what you're talking about.

Call-logs and text messages from the last month, here.

Can I see those, please?

Oh, thank goodness for that. A coincidence.

We needed one of those.

I mean, ideally we'd have three to be statistically significant,

but one's a start.

There, see?

The last call, just before midday.

00 33 1.

So that would mean...

That around the same time she was murdered,

someone used her phone to make a call to Paris, France.

I don't understand.

Well, that is a Parisian phone number, is it not?

Yes. And?

Well, we've traced it, obviously.

Does the name "Paul Tremblay" mean anything to you?

He's my, um, boyfriend.

Ex-boyfriend. Why...?

We've been texting again since Rome.

I didn't want to tell you, either of you,

because this whole thing, this whole trip, it was meant to be the...

"Sans hommes"?

Yes, thank you.

It's not like everything's forgiven or forgotten.

We're working through it.

On that day alone, we had already fallen out

and made up twice by the time we got to the church.

And then the signal, it was bad in there.

Eventually his last text came through and...

.. "I still love you."

And then my battery died.

And he had just told me he loved me.

He saw that I had read it,

and he got no response.

So she let me use her phone.

I offered to pay and she said, "No."

She was very kind.

Oh, wait, so where's the phone now?

What do you mean?

I gave her it back.

Well, this is very disappointing.

Excusez-moi?

No, he's right, Katya. It is.

You should have told me.

You think I would be angry?

Disapprove?

All I ever want is for you, for any of us, to be happy.

Does, ah...

Does that include me?

What?

The... man in Athens, in the shirt.

Huh? The one who bought me the coffee.

We have been talking...

..rather a lot.

Maman! What? I'm 70, I'm not dead.

So I was the only one, this whole trip,

eating, praying and loving alone?

D'accord.

Detective Inspector, are you free for dinner at all tonight?

Erm...

Pfffff...

Why did you tell her you were married?

Oh, what was I supposed to say -

that it would be inappropriate of me to date somebody

involved with the...?

Actually, that's exactly what I should've said.

Because you're not married, are you?

No, of course I'm not.

You know I'm not.

What are you... What are you doing? I'm not married!

Never have been married and I never will be married, all right?!

Sorry.

Can we just drop it? Focus on what matters?

Like the fact that we had one lead and now we have none.

It IS the phone.

It has to be. As random as everything seems,

the killer must have taken it for a reason.

Wasn't she using it to take photos during the tour?

Doors opening.

Oh... Doors closing.

Guv? We need to go back to the church.

Hello!

They're all of the same places.

Well, they would be, wouldn't it?

It's the same tour, chief, day after day.

Look, are you going to let me in on what you're thinking here, or...?

I'm thinking, "What if one of the photos she took the other day

"is the reason she was killed?"

Well, something must have happened on that tour that...

..sealed her fate, and the missing phone's all we've got left.

Well, yeah, but we don't even have that

and, if your theory is correct,

then the killer would've almost certainly gotten rid of it by now.

All right, then, what if we used basic critical thinking to work out

the most likely scenario of what that photo might have been,

without actually seeing the photo itself?

Well, yeah, that would be quite something, chief, wouldn't it?

And how exactly would we do that?

We could take the tour.

I'll lead the way.

You get the photos from their website and go on your phone...

The next one is King's College.

Erm...

Ah, King's College is that way, chief.

Wait, I thought you went to university here?

Yes, just...

..checking it hadn't... moved.

What, since 1441?

Yes.

This is it,

the last stop before the crime scene.

Now, that's a statistically significant number of coincidences.

What, uh...? What is?

Three.

Which basically means that they're not. Not what?

Coincidences.

Do you think we could get everyone back to the church?

And perhaps Chief Constable Ziegler, too?

What? The... the Chief Constable? Why?

Unfortunately, we need him.

Plus, he seemed keen to see me perform miracles.

Seems as good a place as any.

Sorry.

Make this good.

Ah...

There... there was a very tough question at the heart of this case.

What could possibly occur during a two-hour walking tour

to turn someone who wasn't a killer at the start of it

into one by the end?

But it turns out it was never a question, at all.

It was... it was a riddle.

And like all good riddles, the answer is a trick one.

Because, actually, nothing could do that.

They were already a killer.

We had two pages of the puzzle book stuck together.

We weren't investigating one murder.

We were investigating two.

Two? Yes, Ms Chen.

Your friend's and a gentleman by the name of Jordan Halshaw.

That's the one they found in the river this morning.

Yes, it is, Mrs Tate.

I believe, at that point, the speculation was drowning.

But I-I assume that that they've done a...

..a how-did-they-die test...

Postmortem?

..postmortem, since then.

We have.

Sorry, DCI Taylor, are you telling me you know who did it?

I do, yes.

In fact, I should be able to get you a confession in a minute.

Hang on.

When you're investigating two cases,

but you only think you're investigating one,

nothing is going to make any sense.

Instead, it becomes a lateral thinking puzzle.

You have to recognise that something is missing,

and look for what that is in the variables

which, in this case, took the form of coincidences.

A statistically significant number of coincidences.

Exactly, three.

Enough to demonstrate that there's a high likelihood

that they're not coincidences at all.

In this instance, the first coincidence was the location

of the final photo stop on the tour, Mallard's Way.

Site of the very development that the ill-fated Mr Halshaw

had been camping out in.

A development that would be perfectly framed in the background

of any photograph you might take in that spot.

Which, of course, Ms Rowlands did -

coincidence number two -

on the one and only key piece of evidence that was missing

from her crime scene, her phone.

A development which was also accompanied by a small sign,

the inscription upon which gives us our third coincidence.

Protected by Cambridge Complete Security.

Your connection to both events is a coincidence too far, Mr Tate.

So, was it an accident?

Did he surprise you during your rounds, or...?

Uh, I-I...

I'm sorry, but I don't... don't have a clue what you're talking about.

I see that stain is still there.

Am I to take it the uniform still hasn't been dry-cleaned?

Am I also right in assuming that you were wearing it

on the day in question?

I think what DCI Taylor is trying to tell you is that,

if you had any form of physical contact with Mr Halshaw -

a confrontation, perhaps, a struggle -

then even something as small

as a single flake of skin on that uniform would prove it.

Do we need to send it for testing, or...?

There were empty cans.

Blankets, needles.

I-I assumed some junkie had broken in and was squatting there.

Then he came back.

Physically attacked me.

I mean, he-he was so out of it, I... I don't even think

he understood what he was doing.

I didn't mean to hurt him.

I got an arm around him.

I tried to hold him. I...

I just wanted him to stop.

But instead...

Then it was self-defence.

It was self-defence.

It wasn't your fault.

You didn't need...

You should have called the police, explained it all.

They... they would have...

And the money?

Jordan Halshaw took £8,000 from his father's safe

on the day he disappeared.

It was in a bag.

And now?

Hidden, at home.

What?

Adrian...

Why?

Look, I'm sorry, but what exactly does any of this

have to do with Meghan?

Ah, yes, good... good question, Mr North.

You see, we were acting under the assumption that the motive

for her murder must have somehow formed during the tour.

But we never thought to ask which tour.

These, of course, they take place twice a day, seven days a week,

and they always use the same photo stops.

You can't have been certain whether your deed

had been captured on camera...

..but you also couldn't take the risk.

You had to get that phone.

So you used your own anniversary as cover.

It wasn't like that.

I had different plans for our anniversary, bigger ones,

better ones, but... but I had to try and protect us.

I spent that whole trip, watching her...

..waiting for her to put that bag down and turn away,

just once, just for one moment.

But she never did.

Not till right at the very end.

Let me help.

Oh, thank you.

Oh...

Thank you.

Can I have it, please?

Give me the code. What? No.

Give me it back.

Don't!

I never wanted to hurt her.

I never wanted to hurt anybody,

but... but, with everything we went through last year,

and for that money to just fall in my lap like that, I...

I was going to get that diamond ring, finally.

The one I'd always promised you. Remember?

She was 21 years old.

Constable.

Constable.

Oh, do... No, no, no, I've got this. One of you, please.

Please stand up, sir.

Adrian Tate, I'm arresting you

on suspicion of murder.

You do not have to say anything,

but anything you do say may be held against you in court.

C'est la vie.

Oh, Jesus!

Well, now that's over with,

we... we should probably, er...

I was engaged.

She died.

I'm... I'm so sorry.

Her name was Mandy.

Mandy Ziegler.

As in...?

He helped to fast-track the transfer.

I couldn't stay there.

But that's all I've ever asked of him.

He would have been my father-in-law,

but now the only thing we have in common is a shared grief, and...

..I don't want anyone ever suggesting I used that...

..to further my career or to take advantage.

And, believe me, if they knew, they would.

I understand.

Thanks, Guv.

Oh, that's better.

Oh...

Do you not think I could phase in the idea of James wearing glasses,

and perhaps stopping taking sugar?

He's dead.

He can't be.

He... He is.

Erm...

Erm, he was found...

..hanging in his cell this morning.

Wait...

..you mean the burglar.

Yes, of course, I mean the burglar.

Who else did you think I meant?

What's going on? What happened?

The man they arrested for the Sinclair murder

has... has killed himself.

Maybe he didn't.

What if I caused this? What if he's dead because of me?

I don't see how you could.

I was supposed to talk to him today. What if they knew that?

"They"? Yes, "they" - them!

Lucy, erm, perhaps we should...

They must have followed me, tailed me to her house.

Lucy, no, that... that doesn't make any...

They could be watching us now.

Oh, my God, can you see anyone?

All right, stop! Just stop.

Please.

Look, nobody was tailing you and nobody is watching you, OK?

If they wanted to follow anyone, it... it would be James, wouldn't it?

Or who they think is James.

Why... why would they follow his wife? It doesn't make any sense.

Lucy, the...

The man was facing life in prison for a crime he didn't commit.

What happened is tragic,

but it hardly needs a grand conspiracy to explain it.

Something is being covered up here. We know that.

But shadowy figures orchestrating a suicide

inside a guarded prison cell?

No, it's too much.

It's... it's too...

"Big"?

Do you really believe that?

I really do.

You're not just saying what you think I want to hear?

I think I've already proved I'm rubbish at that.

Oh, that poor woman.

I know.

Do you want me to... get you a coffee?

You make awful coffee.

Do me a favour, John.

Don't solve any murders today.

I'll try really hard not to.

Did you see it? No.

But I heard it.

It was obviously an accident.

I've never seen another man die before.

Is there a single person that works on this site

who is ever where they're supposed to be?

Listen, is this going to take much longer?

I'm afraid that's the least of your problems.

One of them is a murderer.

What if I can't solve the cypher?

The cypher is a puzzle.

Solving puzzles is literally what you do.

Hello?

What do you think you're playing at?!

Who is this?

Ode To Joy from Ninth Symphony by Ludwig van Beethoven

♪ Freude, schoner Gotterfunken

♪ Tochter aus Elysium

♪ Wir betreten feuertrunken

♪ Himmlische, dein Heiligtum!

♪ Deine Zauber binden wieder

♪ Was die Mode streng geteilt

♪ Alle Menschen werden Bruder

♪ Wo dein sanfter Flugel weilt! ♪