At Dr. Wágner's group psychotherapy, three women of mature age meet by chance. Although they differ in profession and also in character, they have the same problem. Their depressions and sufferings have a common denominator: the infidelity of their spouses, to whom they sacrificed dozens of - often difficult - years of life together. It spontaneously brings them closer and they decide that revenge will be better than an expensive session with a psychotherapist. They will help each other with it and prepare a real hell on earth for their unfaithful husbands... The film is a smiling look at the male crisis of middle age and a celebration of female solidarity.