Dark Heart begins on ITV on Wednesday 31 October at 9pm, with the second part of the six-part series showing the following day. These first two episodes were orginally broadcast as a film, in 2016, on ITV Encore.
The series is based on/inspired by the books by Adam Creed.
Series overview from ITV's website:
Tom Riley stars as DI Will Wagstaffe, a man haunted by the murder of his parents when he was 16 years old.
Set in London and produced by Silverprint Pictures, the series is written for ITV by acclaimed screenwriter Chris Lang whose work includes award-winning drama Unforgotten, Torn, Undeniable and A Mother’s Son. Dark Heart is inspired by characters created by novelist Adam Creed, who has written a series of books featuring Will Wagstaffe.
Whilst devoting his life to his work, DI Will Wagstaffe, also known as Staffe to his colleagues, battles personal demons. He’s haunted by the unresolved murder of his parents, which affects both his private and professional life including his on-off romance with sometimes girlfriend, Sylvie (Miranda Raison). His closest relationship is with his sister Juliette, (Charlotte Riley) and young nephew Harry, who stays with him when Juliette has troubles with her boyfriend.
With no parents and no significant partner of his own, Juliette and Harry mean everything to Staffe. Determined and tenacious, Wagstaffe is an exceptionally good police officer, in spite of the fact he’s been known for pushing the boundaries of what’s considered acceptable policing.