A millionaire sets up a bomb in his boat to fake his death. Barnaby is contacted by the girlfriend of his boat "captain" to investigate what happened. Small clues like hand-tied flies, a cat boarded at a vet's, and an apple slicer bring Barnaby to a confrontation with a killer.—jeaneva
Philip Carylse tricks his friend Mike into boarding his yacht, where he planted a bomb in order fake his own death to be with his younger mistress Diane. Mike dies in the explosion and Barnaby investigates his disappearance but ends up stumbling into Philip and Diane's scheme. Diane panics and Philip murders and buries her in the backyard of their house.—charmardee-smith