snuff movie

Snuff is a 1976 splatter film most notorious for being marketed as if it were an actual snuff film.The film started out as a low-budget gore film titled Slaughter which was written and directed by the husband-and-wife grindhouse filmmaking team of Michael Findlay and Roberta Findlay. Filmed in Argentina in 1971 it depicted the actions of a Manson-esque murder cult. The film went unreleased for several years, though after the controversy that erupted when it was released in 1976, people claimed to have seen it before.
See more at Wikipedia.org...

A snuff film, or snuff movie, depicts the actual killing of a human being - a human sacrifice (without the aid of special effects or other trickery) perpetrated for the medium of film for the purpose of entertainment.
See more at Wikipedia.org...