AllMovie

One night, a female demon attacks Rick, a contentedly married man. Under her spell, he takes a beautiful young woman, Ariel, off to an isolated cabin for a weekend fling. There, bizarre and frightening things happen, and accidentally Rick kills her. But she doesn't stay dead. He soon realizes that she is the demon that first attacked him and he must defend himself by killing her again... and again... But, no matter how many times he kills her, she keeps coming back. When he finally escapes and returns home, he discovers that his life has disappeared into a nightmare of madness, lust, adultery, and coldblooded murder.