Parish and Richards are given the case of a beautiful naked mutilated woman who seems to have walked away from her life. Xena and Stick must find out whether the killer of an eight-year-old girl has returned 24 years later to finish what he started. After the death of a DI from Romford, the Chief Constable asks Kowalski to come back initially for a month to solve the case. Bronwyn isn’t happy though, she wants him to investigate the murder of prostitutes in different foreign ports. Jerry, Shakin’ and Joe are allocated a pro-bono case involving domestic violence and murder, but all is not what it seems.