Lucía is a sixty-year-old greedy mother who needs to feel young and attractive. She seeks only her own self-interest, regardless of who she betrays or uses. She betrays her daughter Rebeca by engaging in an affair with her unscrupulous son-in-law Octavio, whom Rebeca has just married. Upon learning of this betrayal, Silverio, Lucía's husband, leaves home and quickly falls into the abyss of emotional agony and death. Antonio, the other son of the perverse woman, suffers the total contempt and abandonment of his mother. When Antonio realizes that the destruction of his family is already irreversible and his mother does not care, he decides to put an end to all that moral and emotional evil.