Mags, recently widowed, has retired to tiny Buck's Gap off the Big Sur coast, content to work her crosswords and discuss mysteries with her book club. Then she discovers the body of a murder victim, a professional puzzle-maker, and is drawn into the investigation. Soon a glamorous FBI agent arrives in town trying to find some stolen diamonds from a long-ago heist that she thinks may be connected. Mags is happy to help the police chief, but she may...