Written by Tony Basgallop (Inside Men), the four-part series sees Threlfall in his first role since playing Frank Gallagher in Channel 4’s Shameless.

The cast also includes Russell Tovey (Being Human), Stephen Mackintosh (Criminal Justice), David Bamber (The King’s Speech), Victoria Hamilton (Toast), Indira Varma (Luther) and Claudie Blakely (The Nativity).

Basgallop commented: “The key to writing and casting What Remains has been in ensuring that we had the right chemistry between the characters. We have to believe in the partnerships for the drama to work, because at its core this is an ensemble piece about the spaces we share, the compromises we make, and the unwritten rules of communal living. It’s also a whodunit, so we need to empathize with these characters whilst at the same time presenting them as suspects in a murder. No mean feat. Fortunately we’ve landed a cast with the quality and experience to pull the audience in any direction we choose to take them.”

Hilary Salmon, executive producer, added: “Tony is one of the stand-out British dramatists currently writing for television and we are thrilled to be making his intriguing new murder mystery. What Remains is both a tense whodunit, obeying all the rules of the popular genre, and at the same time a deep analysis of the nature of loneliness and the true meaning of community.”

> Order What Remains on DVD on Amazon.

Directed by Coky Giedroyc (Spies of Warsaw), What Remains is currently filming in London.

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> Buy the Shameless complete Series 1- 8 boxset on Amazon.

Watch the trailer for Inside Men…