Margarita is found, naked and bloody in a luxurious house and is promptly taken to a mental institute. The doctors and nurses meant to take care of her aren't exactly who they seem and a mysterious figure, clad in black, circles the premise at night, offing nubile young women.
A brothel owner is questioned in the disappearance of the daughter of a wealthy man after she is still not returned, or told of her possible whereabouts, after the $5,000,000 ransom was paid.
A young woman feigns illness in order to infiltrate a mental hospital, where she investigates the disappearance of her sister, a former patient. Meanwhile, the hospital warden and her attendants abuse and torture their charges, forcing them to star in cheap skinflicks.
Maria, an unfortunate young woman, kills her rapist father in self-defense, and is later tried, sentenced, and shipped off to a woman's penitentiary where she and her fellow inmates are subjected to psychological and sexual abuse at the hands of a psychotic lesbian warden.
A private eye who's over his head in debt takes on a job snapping photos of his client's rich husband in bed with another woman. But when the husband winds up with three bullet holes that seem to have come from the private eye's own gun, he's got to prove he's not the murderer meanwhile getting tangled deeper in a web of deceit, lies, and steamy night club dancers!