Diana secretly owns a nightclub and has a son named Arturo. When Arturo gets his college degree, he decides to celebrate and goes to the nightclub he does not know his mother owns. There, he meets and falls in love with a lady of the night. When he takes her home to meet his mother, both women are embarrassed. Diana offers the girl money to leave Arturo alone, and the young girl takes it and gives it to Arturo with a letter saying she’s leaving. Arturo is upset with his mother and drifts away from her. Diana, tired of the nightclub business and of the double life she has led, decides to retire and gives the nightclub to the women who have worked for her. She intends to patch things up with her son and to welcome the woman that Arturo has chosen to marry.

Mari Gaila (Silvia Pinal), is an adulteress who lives between ragged, thieves, prostitutes, dwarfs and other misshapen beings, in a rare box at a country and a vague time. Her husband, is a poor sacristan who agrees with other relatives to do business with the display of his orphaned nephew, a mentally retarded dwarf. Caught in committing adultery with her lover, Mari Gaila is caged naked and punished by the people.