Ethel and Tommy Barrick are sent to Ireland to spend the summer with their new stepmother. Once there, they discover her to be an evil, power-seeking witch, with real magical powers and a hatred for all things green.
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. Written by Mattias Thuresson