London police detectives Cassie Stuart and Sunny Khan investigate historic cold cases involving missing persons, murder and long-hidden secrets.
Where to watch
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Amazon Prime Video
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PBS
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PBS Masterpiece
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Thirteen
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WETA+
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KQED
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Amazon Video
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Apple TV Store
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Google Play Movies
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Fandango At Home
see all options Availability data: JustWatch
- Seasons
- 6
- Episodes aired
- 36
- Latest aired
- S06E06
- Total runtime
- 1d 3h
Timeline when each season aired
- Season 1 October 2015 – November 2015 6 episodes
- Season 2 January 2017 – February 2017 6 episodes
- Season 3 July 2018 – August 2018 6 episodes
- the show was away for 2 years and 6 months
- Season 4 February 2021 – March 2021 6 episodes
- the show was away for 1 year and 11 months
- Season 5 February 2023 – April 2023 6 episodes
- the show was away for 1 year and 10 months
- Season 6 February 2025 6 episodes
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S03E01 Episode 1
July 15 · 46min find the promo
Show synopsis
When the body of a teenage girl who went missing at the turn of the millennium is found at a building site off the M1 motorway, four men are placed under the spotlight and their relationships are tested to the limit.
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S03E02 Episode 2
July 22 · 46min find the promo
Show synopsis
Cassie and Sunny go in search of Hayley's family as the press begin to take an interest in the story. A detective who was involved in the original investigation offers his thoughts on why her disappearance remained unsolved, pointing out that Hayley's boyfriend was suspected of the crime but was never charged. The distance between where Hayley was last seen and where her body was found leads Cassie to form a new theory - that the killer may have travelled up from London, then returned before they could be questioned.
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S03E03 Episode 3
July 29 · 46min find the promo
Show synopsis
Cassie and Sunny begin their interviews...
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S03E04 Episode 4
August 5 · 46min find the promo
Show synopsis
It becomes clear to the detectives that the four men have conspired to come up with a false account of what took place the night Hayley disappeared. Jake is assigned to track down Tim Finch's ex-wife to hear her version of events - and uncovers disturbing information about Chris Lowe's past. On a personal front, Sunny is offered the opportunity to rekindle his past marriage, and Cassie worries about her father's failing memory.
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S03E05 Episode 5
August 12 · 46min find the promo
Show synopsis
James, Tim and Chris are exposed as having lied about their whereabouts on the night Hayley died. Pete reveals that he saw Eliot climbing into the holiday home through a window on New Year's Day, while leaves James struggling with the possibility that his son may have killed Hayley. Fran cracks a code in the dead girl's diary, suggesting that she met a local drug dealer on the night she disappeared.
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S03E06 Episode 6
August 19 · 46min find the promo
Show synopsis
Following the discovery of seemingly incriminating items found at his house, Tim insists he bought them for his girls at a fete in Middenham. However, the team are not buying Tim's story. A new discovery leaves the team shocked and devastated, hitting Cassie particularly hard.