The four-part limited series will premiere on Monday, December 6 at 9/8c.
Inspired by real events, seemingly ordinary British couple Chris (Thewlis) and Susan Edwards (Colman) become the focus of an extraordinary investigation when two dead bodies are discovered in the back garden of a house in Nottingham.
The cast also features Kate O'Flynn, Dipo Ola, Samuel Anderson, David Hayman, Felicity Montagu and Daniel Rigby.
Ed Sinclair created the series, with Will Sharpe directing. They executive produce with Colman, Jane Featherstone, Chris Fry and Ed Sinclair. Katie Carpenter serves as a producer. Sky Studios, Sister and South of the River Pictures produce in association with HBO.
