(mysterious music) - Judith Potts reporting for duty.

- Everyone loves a murder mystery, and a good script is where it all begins.

- Oh my God.

- "The Marlow Murder Club" is about Judith, and she bumps into what she thinks is a murder.

(gunshot bangs) - It's my neighbor.

I think someone's just shot him.

- And the police don't believe that.

And in investigating her neighbor's death, she bumps into Becks, the local vicar's wife, and also Suzie, a dog walker, and together they solve a sequence of murders that happened here in Marlow.

- You came.

Both of you.

- When I first read it and you get to the end and you go- (Becks gasps) - It's not as bad as it looks.

- The first thing that attracted me to the project was the fact that it's got women at the helm.

The female characters aren't in competition with each other.

- The way we are as women, the way we empower each other, the way we support each other, that's sisterhood.

(Becks laughs) - Up top.

- Yes.

- For all of the chaos that comes with them, they have brilliant ideas.

- I need you to listen to me because every time I see you, there are more of you.

- The relationship between the three of them works so well because they are so different.

- Having that kind of age range of women that are carrying a storyline, and something that's quite kind of dynamic is fresh.

- [Becks] We're not gonna stop investigating, are we?

- No way.

- Not on your nelly.

- Not on your nelly?

- There's a great chemistry between them all, and they have strengths in different areas.

- The setting of Marlow, I mean, that's the other, that's another cast member.

It's a beautiful, beautiful town.

But people are dying in Marlow.

- So when you're trying to do an English murder mystery, what you are really looking for is somewhere quintessentially English.

- The locations are around Marlow or in Marlow.

I've not worked on anything that relies so much on its location to be accurate.

- There's something very safe and calming and so painfully beautiful about Marlow.

It's the perfect backdrop to this kind of story.

- It's beautifully put together and Robert's done the most amazing job.

- [Robert] I can't wait for people to see it.

- I hope it intrigues them.

I hope it fascinates them.

- We're not gonna miss this, are we?

- The three words I'd use to describe "The Marlow Murder Club" would be: never underestimate women.

(mysterious music)