A female cop goes undercover to trap a dangerous serial killer.

Alex is a Vietnam veteran who, when he comes home, find out that his family has been murdered.

A young man returns to his rich family's estate after a stay in a mental hospital. He finds that his father has married his deceased wife's nurse, who is secretly plotting with her lover

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.