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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Funding for MASTERPIECE is provided by Viking and Raymond James with additional support from public television viewers and contributors to The MASTERPIECE Trust, created to help ensure the series’ future.

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Episode 4


Cassie and Sunny discover Walsh was chased by all four suspects on the night in question.

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Episode 3


Cassie and Sunny interview the four suspects, who all deny knowing the victim.