Innokenti Melnikov, a renowned and charismatic architect, who has three marriages to his credit, remains despite his divorces the man in the lives of these women: Léna, Yulia and Varia. Kecha not only continues to actively support them and maintain close relationships with them but secretly maintains sexual relations with them. However, this symbiosis which suits everyone cracks when the man falls in love with Alla, a young girl from another "environment". The wives decide to unite to take revenge: Kecha must die.