Dr. Frosta dumps body parts and corpses in the marsh, where they rise up again for vengeance.

A young college professor and three of her students seek shelter during a storm in the rural farmhouse of a strange woman who collects lifelike mannequins.

A demented elderly woman has her mentally incompetent son kill and scalp various young women to use their hair for her wig shop while a persistent co-ed tries to link various killings on a local Florida college campus to them.

When the leader of a vicious motorcycle gang finds a farmworker's son flirting with his woman, he beats the boy senseless, then kidnaps the farmworker's daughter.