Black Sabbath (Italian: I tre volti della paura (The Three Faces of Fear)) is a 1963 Italian horror anthology film directed by Mario Bava. The film comprises three horror stories: "The Wurdulak" (based on the novella The Family of the Vourdalak by Aleksey Konstantinovich Tolstoy, and starring Boris Karloff), "The Drop of Water" and "The Telephone". The heavy metal band Black Sabbath appropriated their name from the British title of the film. Rosy (Michele Mercier) is an attractive, high-priced Parisian call-girl who returns to her spacious basement apartment after an evening out when she immediately gets beset by a series of strange phone calls. The caller soon identifies himself as Frank, her ex-pimp who has recently escaped from prison. Rosy is terrified, for it was her testimony that landed the man in jail. Looking for solace, Rosy phones her lesbian lover, Mary (Lydia Alfonsi). The two women have been estranged for some time, but Rosy is certain that she is the only one who can hel...