Casey Miller and Lexie Wentworth's vacation on Cape Cod is rudely interrupted by their discovery of a body in a cranberry bog. Their reputations in Elm Grove have preceded them. Soon, they are visited by an intruder who issues a stern, life-threatening warning to stay out of the case. They learn that all is not well at the art gallery where Lexie has been hired to work for the summer. Casey's summer workplace, too, is shrouded in a mystery that has unexpected consequences. Casey's and Lexie's curiosity and persistence are their strengths, but their weakness as well. Again, they find themselves facing death, manipulated by people they initially trust, and run headlong into a vicious plot of revenge.