All is quiet in Paradise, except for a spate of innocuous vandalism. Good thing, too, because Jesse Stone is preoccupied with the women in his life, both past and present. As his ex-wife, Jen, is about to marry a Dallas real estate tycoon, Jesse isn't too sure his relationship with former FBI agent Diana Evans is built to last. Those concerns get put on the back burner when a major Boston crime boss is brutally murdered. Despite all evidence to the contrary, Jesse suspects it's the work of Mr. Peepers, a psychotic assassin who has caused trouble for Jesse in the past.