 Potters Bluff, Rhode Island. may seem to be a sleepy little town. At least for the casual visitor and the local sheriff, Daniel Gillis. However, all of a sudden, there are a lot of strange murders where strangers or people passing through are killed by mobs of townspeople. Only Sheriff Gillis has no clue to what s going on. Fortunately, the town has an excellent undertaker, William G. Dobbs, who is happy to take care of this sudden death-wave which is good for his business. Gillis soon discovers clues that lead to many of the local inhabitants involved in the killings, including his own wife Janet.