Unforgotten

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When the body of a young man is discovered in a derelict building, DCI Cassie Stuart – one of the Met’s smartest detectives – is called in to investigate with her partner, DI Sunil Khan. Jimmy Sullivan was a homeless boy, murdered in 1976 when the building was a hostel. His diary implicates four suspects.

Clergyman Robert Greaves is a devoted husband and father. Sir Phillip Cross, an eminent entrepreneur, is business tsar to the government. Lizzie Wilton is a middle-aged woman who, alongside her husband Ray, works with disadvantaged black kids. And wheelchairbound Eric Slater is carer to his wife Claire, who’s in the early stages of dementia.

Each of them has something to hide. As their lies unravel, the people they love most begin to wonder what else they might be capable of. The more layers of deception that Cassie peels back, the more she realises that nothing in this case is black and white. Can you ever really know the people closest to you? What secrets have they buried?

Next on...

Series 2, Episode 5

BBC First

The theory that one or more of the suspects may have been abused at the gatherings that took place at the Brentford house is investigated by Cassie.

Series 2, Episode 6

BBC First

After coming to another dead end, Cassie and Sunny work on trying to prove a final theory into David Walker's death and catch the culprit.

Series 3, Episode 1

BBC First

The body of a teenage girl is found at a building site by a motorway, and the team discover she has been missing since the turn of the millennium.

Series 3, Episode 2

BBC First

Cassie and Sunny go in search of Hayley's family as press interest in the story grows. A detective from the original investigation offers his thoughts on her disappearance.

Series 3, Episode 3

BBC First

Cassie and Sunny interview Peter, Chris, James and Tim about the time they spent in the rented holiday cottage at the turn of the millennium.

Series 3, Episode 4

BBC First

Mel Hollis's account convinces Cassie that all four men were lying, particularly Pete, whose criminal past makes him the prime suspect and ends his marriage.

Series 3, Episode 5

BBC First

Cassie finds evidence to incriminate Elliot, though only fifteen at the time of Hayley's death, but James quizzes him and brings him to the police, who dismiss him from their enquiries

Series 3, Episode 6

BBC First

One suspect is now dead and another in custody but evidence found at his flat is dismissed by Mrs Reid as not belonging to Hayley.

Series 3, Episode 1

BBC First

The body of a teenage girl is found at a building site by a motorway, and the team discover she has been missing since the turn of the millennium.

Series 3, Episode 1

BBC First

The body of a teenage girl is found at a building site by a motorway, and the team discover she has been missing since the turn of the millennium.

Series 3, Episode 2

BBC First

Cassie and Sunny go in search of Hayley's family as press interest in the story grows. A detective from the original investigation offers his thoughts on her disappearance.

Series 3, Episode 3

BBC First

Cassie and Sunny interview Peter, Chris, James and Tim about the time they spent in the rented holiday cottage at the turn of the millennium.

Series 3, Episode 4

BBC First

Mel Hollis's account convinces Cassie that all four men were lying, particularly Pete, whose criminal past makes him the prime suspect and ends his marriage.

Series 3, Episode 5

BBC First

Cassie finds evidence to incriminate Elliot, though only fifteen at the time of Hayley's death, but James quizzes him and brings him to the police, who dismiss him from their enquiries

Series 3, Episode 2

BBC First

Cassie and Sunny go in search of Hayley's family as press interest in the story grows. A detective from the original investigation offers his thoughts on her disappearance.