A night for drunken Scottish revelry and merry-making that turns into a nightmare when Chief Inspector James Carrick is found unconscious at the wheel of his crashed car. He had arranged to stay at a hotel that night and cannot explain why he was driving, or remember what happened that night. His reputation and his career are on the line. While he fights tooth and nail to clear his name, the Bath police get to grips with the mystery of the battered corpse of a local TV producer discovered floating in the Avon.