The valley is rocked by the sudden, unprovoked murder of young police officer Kirsten McAskill, while Ashley and Lewis panic that Tommy Lee Royce's actions will lead to them being exposed. Catherine begins seeing her dead daughter as she struggles to come to terms with Kirsten's death, and reveals to Clare that she blames herself. Nevison's wife Helen urges him to involve the police in finding Ann, but he refuses, believing Ann is in too much danger.
Elenco: Sarah Lancashire , Siobhan Finneran , James Norton , Rhys Connah , Charlie Murphy , Shane Zaza , George Costigan , Rick Warden , Vincent Franklin , Karl Davies , Joe Armstrong , Steve Pemberton , Jill Baker , Adam Long , Derek Riddell , Matthew Lewis , Kevin Doyle , Julie Hesmondhalgh , Shirley Henderson , Katherine Kelly Lang , Mollie Winnard , Mark Stanley , Amit Shah .