When Dan Gillis (James Farentino) returns to his home town of Potter’s Bluff, Rhode Island, it is to enjoy a much slower pace of life while he finishes out his career as a law enforcement officer. As he and wife Janet (Melody Anderson), settle into a peaceful life, things begin to go crazy. To start with, people begin to die in very strange ways. But these aren’t townsfolk, they are strangers. As Dan begins to investigate, he discovers that all have something in common and that is a strange visit to the local mortician Mr. Dobbs (Jack Albertson). Dan then notices signs that Janet may be having an affair. She also takes up voodoo. All of this strange behavior also seems to have something to do with Dobbs. When Dan finally begins to unravel these mysteries, he is shocked by the truth that has deep and dark roots in the occult.