An unidentified corpse may be a missing murderer—or another victim—in this police procedural set on the south coast of England . . .

Friday the thirteenth starts badly for DI Andy Horton. Convicted killer Luke Felton has gone missing—at the same time a decomposed corpse is washed up in Portsmouth Harbor. But before Horton can come to grips with either case, he is called to the house of a woman he had met only the day before, to find her brutally murdered.

Is Luke Felton the prime suspect, or is it his body in the mud of the harbor? Horton is under pressure, and little does he suspect that his luck is about to get even worse . . .