After the Civil War, a former Union colonel searches for the two traitors whose perfidy led to the loss of a close friend.

After an archaeological team in Arizona unearths a werewolf skeleton and one of them develops symptoms of lycanthropy before dying, the dig's foreman, Yuri, tries to infect other townspeople as an experiment. When a science writer named Paul takes up residence in the town to cover the dig and develops a romantic interest in a female team member, Yuri makes Paul his next target.

An outlaw and a scorned husband both team up to track down and kill the man that wronged them. Along the way, the two men meet a hired gun that loves money just as much as he loves the company of women, so the two men decide to hire him in order to help them on their mission. However, things become complicated when the man they all seek to kill has risen to become a wealthy sheriff with a small army of gunmen at his disposal.

1983 film directed by Lucio Fulci

The police has to face some extremely brutal murders. How is the rich playboy Peter Crane (Jorge Rivero) involved in this? He suffers from horrible nightmares that make him believe that he is responsible for these murders