Eugénie de Sade (1974)

"Eugénie de Sade" is a film that delves into the dark and twisted world of the Marquis de Sade's short story "Eugénie de Franval." The film, directed by Jesús Franco, is a softcore adaptation that has been compared to his earlier work "Eugenie… The Story of Her Journey into Perversion." The story follows Eugénie, a beautiful but shy young girl, who lives with her stepfather, a renowned author in erotic fiction. As the story unfolds, Eugénie's stepfather becomes obsessed with committing a perfect crime, leading her to become his accomplice.