http://us.imdb.com/title/tt0082272/
From Midnight Video:
The macabre and vulgar 1981 film directed by Walerian ‘The Beast’ Borowczyk. The engagement party of Dr Jekyll to Miss Osbourne is disrupted by a series of mysterious, gruesome murders and deviant sexual acts committed by none other than the mad Mr Hyde. This print contains the always cut ravaging sequence of a willing female victim. With Udo Kier, Marina Pierro, Howard Vernon, Gisele Preville and Rita Maiden.
