Dr Paige is called to attend Bailey, a paranoid police informant held at a safe house. But Bailey's paranoia proves correct and Cramer suffers when the bu I lets start to fly.

DI Cramer's life is in the balance following the shooting, and when Dr Paige confirms a hitchhiker's death, skin found under the fingernails links him to a number of previous murders.

Dr Paige and DS Diamond are on their way to join DI Cramer in London for her commendation ceremony.