Red to Kill

Ming, a mild grade mentally retarded girl, is a good friend of Lok, a social worker. One time, Ming is raped. Although the rapist is caught, the judge calls off the case as Ming is mentally retarded and is too frightened to testify. Lok is angry and decides to use herself as bait to trap the rapist. However, her plot is unsuccessful and she is about to be raped.Meanwhile, the neighborhood is being terrorized by a murderous, slobbering rapist. The locals blame the group home for all the mayhem, until the patients team up to stop a drunken pervert from molesting a schoolgirl. The neighbors are won over, but the real menace is still at loose. Chan, haunted by a childhood trauma, flies into a psychopathic rage whenever he sees a woman wearing red. He brutally rapes Ming-Ming, but decides not to murder her. Ming-Ming is extremely distraught and confused, and makes a poor witness against Chan when the case comes to trial. When Chan is freed, Cheung decides to get revenge. (official distributor synopsis)