en Cuevana 3. Mariano works as chief driller on an oil platform in Campeche 14 days a month. However, he is obsessed with the idea that his wife Gloria is cheating on him while he is away. Therefore, time and again he asks her to stop working and get pregnant for the second time. However, Gloria refuses to be financially dependent on her husband. The couple's conflicts become more acute when engineer Becker, Gloria's former lover, starts working again in the offices where she works.