The film is inspired by a character who really existed in the 19th century. Manuel Blanco Romasanta was a peddler who killed thirteen people to make soap from their fat. Put on trial, he said he was a werewolf.
At the thirty-fourth minute of the film, the camera frames Elsa Pataky from behind, who takes off her dress and is totally naked. We become aroused by her round ass, then the actress enters a bathtub and allows us to admire her breasts. A man helps her wash and caresses her breasts, then puts a hand between her legs.
