After Holly saves a traumatised drug addict, Tracey, from her violent parolee boyfriend, Colin, she finds herself the target of a frightening stalking campaign, and suspects it too be the smooth, but violent, Jack Logan. Spence receives a series of security camera photos of himself, including one of him and Greg Manor, from an anonymous source. A threat or a warning? His inability to track down the sender of the photos renders him unable to find out more about Ellen and Toby's mysterious deaths.