Private investigators Claire Caswell and Gaston "Guy'" Lombard receive an invitation from longtime friends to visit their lodge in Bigfork, Montana, a respite far away from the frenzied pace of Miami Beach. Guy has not been himself since they returned from a case taking them to the Greek island of Crete, and Claire believes the trip will do them good. But shortly after the two arrive, a cold-blooded murder--a crime bearing similarities to a recent rash of burglaries plaguing a well-to-do enclave in the neighboring community of Whitefish--pulls them into an ominous plot and they are called upon by the local sheriff to help solve the crim. A myriad of suspicious characters immediately surfaces in the whirlwind investigation, and the investigators are faced with the horrific reality that their adored friends might top the list.