All the Colors of Darkness (1972)

Synopsis
Pretty Edwige Fenech spends most of her time either naked or dazed in this tiresome tale of devil worship from the director of I Corpi Presentano Tracce di Violenza Carnale. Set in England, the film stars Fenech as a woman who is in therapy for nightmares related to the long-ago murder of her mother. Offering a cure for her woes, a neighbor takes her to a sabbat, where she is seduced and tattooed by the crazed leader of a satanic cult. Soon, the cult is commanding her to kill for them, and a strange man keeps following her around with the stiletto used to murder her mother. It doesn't make much sense and seems to drag on forever, but true Euro-buffs will love it anyway just because of the cast featuring George Hilton, Ivan Rassimov, Nieves Navarro (a.k.a. Susan Scott), Dominique Boschero, and Carla Mancini. ~ Robert Firsching, All Movie Guide