In a city on Spain’s Costa Brava, Clara Valverde, a young beautiful woman, lives with her husband Juan. Juan is an architect and has planned a daring urbanistic project. In reality, the project is not viable. Clara, to keep her marriage and finances a float, works as a porno actress in an underground film industry. In spite of her job and her marriage, Clara is still a virgin. Her marriage has never been consummated because her husband is impotent for which she blames herself. In her work she does not allow to be penetrated. One day she goes to a reunion with Kellerman, an American millionaire who seems to be interested into put into fruition Juan’s project. However soon Clara learns that what he really wants is to blackmail her. The owner of the house, Jorge, finds out Claras’s real occupation and if she does not have sex to the American would tell everything to her husband.
In the early 1900s, Miranda attends a girls boarding school in Australia. One Valentine's Day, the school's typically strict headmistress treats the girls to a picnic field trip to an unusual but scenic volcanic formation called Hanging Rock.
The residents of a suburban high-rise apartment building are being infected by a strain of parasites that turn them into mindless, sex-crazed fiends out to infect others by the slightest sexual contact.