As an expert in insurance murders, Robin is propositioned by a mysterious, but distinguished, gentleman named Graves to kill James Clayton. The job requires an expert because Clayton has turned his country estate into an impenetrable fortress. In hopes of determining which of the dead man's three partners is the guilty one.

After committing murder to win another man's wife and 100,000-dollar insurance money, the killer finds he must keep the dead man "alive" for three days.

A famous surgeon and a playboy are suspects in the death of a multi-millionaire.