In this intriguing mystery, John Thaw (Inspector Morse) portrays unlikely hero Harry Barnett, a failed British businessman working as a caretaker at a villa in Rhodes. When Heather Mallender (Abigail Cruttenden), a young woman with whom he has a one-night stand, suddenly vanishes "into the blue," the police target Harry as prime suspect in her disappearance. To prove his innocence, Harry must flee the island to retrace Heather's steps and discover her fate.