Unmasking a KILLER

MATTHEW RHYS on starring in a twist-laden Agatha Christie whodunnit

- 

A torrid love triangle, disturbing secrets and hidden jealousies are at the heart of BBC's Towards Zero, adapted from Agatha Christie's novel.

The three-part drama is set in Devon in 1936, as a summer house party takes place at Gull's Point, the lavish seaside home of indomitable Lady Camilla Tressilian, played by Oscar winner Anjelica Huston (Prizzi's Honor, The Addams Family). Among the guests are Camilla's nephew - suave tennis ace Nevile Strange (Wilderness Oliver Jackson-Cohen) - and his glamorous new bride Kay (Sex Education's Mimi Keene), but, awkwardly, Nevile's spirited ex-wife Audrey (Black Doves' Ella Lily Hyland) is also in attendance.

As pressures mount within the tense group, events lead up to 'zero hour' and a shocking murder. So, among the lies and motives, can troubled cop Inspector Leach (Matthew Rhys) uncover the killer?

Here, The Americans star Matthew, 50, reveals more about the intriguing mystery...

What appealed to you about Towards Zero?