Part two of two. Despite arresting four people, the detectives face a wall of silence in their investigation into the grisly murders - but they eventually make a breakthrough, which doesn't quite give them the answers they were expecting. On the domestic front, Rachel wakes up in bed with charismatic colleague Sean - a mistake she is keen never to repeat - and Janet wants to keep her newly single status a secret. So the last thing she needs is daughter Taisie telling Andy about her dad moving out.
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