Sexist Arturo is kept pretty busy between his wife, Paz, his son, Arturito, his mistress, Cristal, and his job as a restaurant manager. But things get complicated when Cristal gets jealous of Paz, and decides to seduce the unwitting Arturito as revenge on his father. Before long, Cristal has fallen for the young innocent and Arturo is forced to learn a lesson about infidelity and family.