Director Jean Rollin, taking a break from his predilection for vampire films, ventures into the erotic with Bacchanales Sexuelles. The plot centers around Malvina (Brigitte De Borghese, the leader of a sex cult in the process of being exposed by an investigative reporter posing as a member. The reporter, meanwhile, leaves his cousin Valerie (Brigitte Coeur) to watch his apartment. While there, Valerie and her friend Sophie (Marie-France Morel) have a liason of their own. Chaos ensues when the cult mistakenly kidnaps Sophie. Afterwards, Valerie and hehr sex-obsessed friend Fred set off to rescue Sophie from the clutches of Malvina.