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The film takes place in a single night, from dusk to dawn. Antonio brings his friend Julia to his house for a night of debauched sex. Also his wife Martine has just returned to the house from a mental institution. Eventually he reveals that he intends to drive her back to the institution, but throughout a night of sex, and the sexually fueled death of Marta, a sort of maid at the villa, things begin to change. Julia and Martine develop a close relationship, and at the end of the film they take their own actions against Antonio.—lament imdb.com