Psychomania

Elliot Freeman (Lee Phillips) is a Korean War vet-turned-painter who becomes the prime suspect in the brutal stabbing death of his model, Dolores (Kaye Elhardt). Did Elliot kill her to end their relationship? Or, did her ex-boyfriend, Charlie (James Farentino) murder her out of jealously? Or, could it have been Professor Melbourne (Day Tuttle), a peeping tom with mysterious ties to the woman? Regardless, it's up to Elliott's attorney (Sheppard Strudwick) to clear his name and downplay his reputation as a one-man killing machine.
While Detective Parma (Dick Van Patten) chases down the leads, Elliott's half-sister Lynn (Margot Hartman), arrives to enroll at the local college. She's quickly befriended by Alice (Lorraine Rogers), a sexy young co-ed intent on seducing Elliott, who spurns her advances. Suddenly, Alice becomes the victim of a vicious stabbing and once again, all eyes turn to Elliott. How can he ever prove his innocence when everyone is against him? (official distributor synopsis)