Mature woman teaches mathematics in Rome. As a result of differences on the background of socio-political context, she moved to Perugia where she quickly sympathizes with another teacher, Elisa. In her final year, she is troubled by a young fairy with blond curly hair, Alain. Although he goes out with Georgina, a class girlfriend, he seems more concerned about his political commitments. Attracted by this inaccessible boy, she organizes an evening where she invites some of her students. While smoking joints, drinking or dancing while listening to classical music, she surprised by Alain 's hand-job by Georgina in front of all people. Shocked and frustrated, she pretends a sudden fatigue to dismiss everyone. But this scene has awakened in her uncontrollable sexual urges because Alain has become the object of her fantasies, an obsession that she can not escape but she also discovers that Elisa is also in love with him. While she managed to sleep with him, the latter can not stand her morbid jealousy and his possessiveness anymore. In retaliation, he organizes a cruel and humiliating staging where he delivers it to three of his perverted friends .