Little boy learns of his stepmother's infidelity and later witnesses a murder... but the shocks have thrown him into a hysterical paralysis, and it's almost impossible for him to communicate anything to anybody.

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.

Family conflicts and shady business practices lead to fratricide. And then...