Aired 5 years ago - Jul 16, 2017
A body is pulled from the Loch, and a photograph in his wallet provides a vital clue. Annie tries to gather further evidence by talking to a desperate Mhari, who refuses to believe the terrifying possibility she is presented with. Albrighton is threatened with arrest by Quigley, but nevertheless continues to pursue his own theory about the killings - even if it means putting his life on the line.
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