A motorcycle gang kidnaps a young woman, Josie, from a diner and brutally kills her. Many years later, the girl's father finds a magic crystal that can bring the life back to dead objects. He uses it to re-animate his daughter. He lets her seduce any young man that comes to visit the small town and then kills them. Four young students, two boys and two girls spend a vacation near the town, Hellgate. They hear about the story and get involved.

The bodies turn out to be very radioactive. A sheriff and reporter start to investigate ...

A big city police lieutenant travels to the tropics to find his daughter, who he finds involved with a very suspicious artist.