The discovery of seven-year-old Catriona's body after almost two decades prompts Jimmy Perez to take Magnus in for further questioning. But at the station, the recluse's distress ends in him in attacking the inspector, and he is sent for a psychological evaluation. Ploughing on, Perez re-examines the evidence, but it is only when Catriona's brother reveals she had a secret hiding place at their old home - the same house where Catherine also lived - that he finally sees a glimmer of hope.
Elenco: Douglas Henshall , Alison O'Donnell , Steven Robertson , Mark Bonnar , Erin Armstrong , Julie Graham , Julia Brown , Fiona Bell , Neve McIntosh , Gerard Miller , Stephen Walters , Lewis Howden .