When Cathy was a girl, she saw her deranged mother murder her father and only narrowly escaped with her life. Haunted by memories of her macabre childhood, her nightmares turn into a terrifying reality when she's lured back to her childhood home.

A rich actress who has gotten too old for leading roles employs a scientist who is working on a formula for eternal youth. The formula involves withdrawing certain fluids from the human brain. She takes the serum, but its unforeseen side effects turn her into a murderous monster.