TV series
Detective Inspector William Wagstaffe attempts to solve brutal crimes while also trying to hold his fractured life together.
Availability
Dark Heart premiered October 31, 2018. We don't have a confirmed streaming, rental or purchase option yet.
Detective Inspector William Wagstaffe attempts to solve brutal crimes while also trying to hold his fractured life together.
Choose an episode, then use the watch options above for the show.
Episode 1
D.I. Will Wagstaffe is called to investigate a gruesome murder, but they soon learn that the victim was arrested two and a half years ago on suspicion of sexually assaulting his young step daughters.
Directed by Colin TeagueWritten by Chris Lang
Episode 2
The detectives continue to look into a string of attacks on a series of people who were marked as paedophiles but never convicted, although Wagstaffe is frustrated by the eerie wall of silence from the victims' families. To make matters worse, a web of deceit begins to unravel - leading the DI to a disturbing conclusion.
Directed by Colin TeagueWritten by Chris Lang
Episode 3
D.I. Will Wagstaffe and his team investigate the mysterious death of a young nurse on the London Underground. Whilst CCTV reveals the victim fleeing an invisible assailant, forensics find a DNA link to a missing teenager presumed dead for seven years. Aided by his new team D.S. Rob Mullan, D.C. Ray Monk, D.C. Annie Webb and pathologist Dr. Luke Paul, Will unearths a bond of secrets and betrayals which leads him straight into the dark underbelly of the city.
Directed by Colin TeagueWritten by Ben Harris, Chris LangGuest stars Siggi Holm, Luke Westlake, Claire Goose
Episode 4
As the team delves deeper into the poisonings, it quickly becomes clear that those responsible have a powerful influence. The pressure builds for D.I. Wagstaffe to find buried links between Sofie Cerna and Nick Kyriacou, but when the investigation veers close to home, he finds himself making his sister's fiancé Paulo an offer that could have far-reaching consequences.
Directed by Colin TeagueWritten by Ben Harris, Chris LangGuest stars Tom Canton, Luke Westlake, Claire Goose
Episode 5
A young woman is found murdered in an East London church, and D.I. Will Wagstaffe must establish if it's the work of her recent stalker or if the answer is more complicated.
Directed by Colin TeagueWritten by Chris LangGuest stars Leon Lopez
Episode 6
As the team delve deeper into the circumstances surrounding Suzy's death, details of her torrid emotional state reveal a surprising new line of enquiry. Elsewhere, Staffe is forced to confront the devastating fallout from his recent actions.
Directed by Colin TeagueWritten by Chris LangGuest stars Leon Lopez
Episode information updated Sep 3, 2026
Available now in United States
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Tom RileyWill Wagstaffe
Miranda RaisonSylvie
Anjli MohindraJosie Chancellor
Tom CantonPat Duggan
Siggi HolmBellow
Luke WestlakeAdam Miller
Leon LopezLeon Williams
Claire GoosePhoebe Kyriacou
ITV1United Kingdom
Silverprint PicturesUnited Kingdom
