The film tells three stories about three high middle class women from Mexico City who are unfaithful to their partners. 1) Julieta is a married with Eduardo, a publicist addicted to work, for 10 years and goes to Cuernavaca every Wednesday to see her cousin Leticia, but in reality, these outings are an excuse to meet her lover Marcelo. 2) Clara is a capricious and fickle girl who is committed to marry Ricardo, a lawyer, until she meets Alfonzo, the architect in charge of remodeling the apartment where the couple will live when they get married. Both of them get mischievous from the first moment since he had an affair with Alicia, Clara's best friend, which ended with the suicide attempt. 3) Mariana and Rafaela are married for 10 years and have a daughter, but she is dissatisfied with their marriage until she decides to contact Armando, a man much older than her, through a magazine contact. The woman maintains a double life without anyone knowing until, when she decides to finish with her lover.