The Disturbance on AllMovie

Hailing from "Sunny South Florida" (check the last credit on the film) this gruesome horror outing centers on the insanity of a murderous schizophrenic for whom the lines between reality and fantasy are hopelessly blurred. The terror begins when lovely waitress Susan finds 27-year-old Clay at the beach, building sand castles. She has no idea that he is terribly disturbed and they end up making passionate love. A relationship ensues, but unfortunately, Clay keeps having strange, scary visions in which he graphically murders women. Pretty soon he is unable to keep his illness a secret. One day he loses his job, and returns to find himself out of Thorazine. Suddenly a strange series of horribly violent hallucinations plague him, but are they really only dreams?