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.

When Rhona Bishop suffers a series of terrifying attacks, the police suspect her former abductor is guilty of the assaults, but Paige has an inkling her husband could be involved.