Nicola Walker (Last Tango in Halifax) and Sanjeev Bhaskar (Indian Summers) star as police officers investigating the cold case murder of a boy whose diary implicates four seemingly unconnected couples in a thriller that The Guardian (UK) hailed as “so much more than a satisfying murder mystery.”

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The Hunter
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Cassie & Sunny's Partnership

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1:56
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Creator Chris Lang on Screenwriting

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Cassie's Journey

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The Suspects

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The Murder
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Full Episodes
Season

Episode
44:53
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Episode 6
Despite a tragic turn of events, the team narrows down the suspects.
Season 4
Episode 6

Episode
45:26
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Episode 5
Cassie and Sunny interview two of the suspects again and get closer to the truth.
Season 4
Episode 5

Episode
45:16
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Episode 4
Cassie and Sunny discover Walsh was chased by all four suspects on the night in question.
Season 4
Episode 4

Episode
45:04
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Episode 3
Cassie and Sunny interview the four suspects, who all deny knowing the victim.
Season 4
Episode 3

Episode
45:20
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Episode 2
Cassie and Sunny identify four potential suspects who trained as police officers together.
Season 4
Episode 2

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46:12
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Episode 1
After making the decision to retire from the police force, Cassie faces a dilemma.
Season 4
Episode 1