Dark Heart starts on ITV on 31st October starring Tom Riley as DI Will Wagstaff and Charlotte Riley as his long suffering sister Juliette.
Set across a stifling week during a London heat wave, DI William Wagstaffe, a workaholic whose personal life is as complex as his day job, investigates a string of horrifying murders in this atmospheric new crime thriller.
Still haunted by the unsolved murder of his parents when he was 16, 'Staffe' is about to continue a personal hunt for their killers when he's called to the scene of a disturbing brutal murder.
When it emerges that this is not the only victim, the pressure is on as Staffe pushes the boundries in his search for the truth. But what he uncovers is far more shocking than he could ever have imagined...