While enjoying a Caribbean cruise given to her by her editor as a reward for finishing her latest manuscript early, Jessica finds herself investigating the murder of Janet Fisk, who was killed with her own gun. Jessica's old friend and retired insurance investigator Dennis Stanton is now the chief of security for the cruise line and is aboard the ship. She's also been giving advice to Molly Altrip whose boyfriend is something of a cad and one of the murder suspects. Molly is questioning her relationship with him and seems to have taken an interest in Philip Polachek, a member of the crew. Jessica's former college roommate, Leslie Hunter, is also on board and has been dating the ship's Captain for over a year. A lost lighter picked up by the kleptomaniac Mrs. Sobel provides Jessica with the vital clue to solve the crime.
—garykmcd