Anna Willis witnesses her mother's death and may be the only person who saw the killer's face... Detective Chief Inspector Robert Ashworth is the first on the case with his rookie partner Detective Sergeant Addison Scott. Robert makes it clear that he isn't happy with his new partner, but can Addison prove herself worthy? As Addison tries to put the pieces of the puzzle together, she starts to realise that the case is closer to home than she thought. As more victims are found, it becomes clear that a copycat killer is on the loose and that Addison has a choice to make. Does she want to visit the dark past that she has fought so hard to forget or let a killer walk free?