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Through groundbreaking, familial DNA technology, the team in ‘02 manage to locate the killer. However, without 100 per cent certainty, Paul may have to rethink his approach.
Episode Title:Episode 3
Stars:Calista Davies, Karen Paullada, Keith Allen, Oliver Ryan, Philip Glenister, Richard Corgan, Richard Elfyn, Richard Harrington, Steffan Rhodri, Walter van Dyk
Networks:BBC One