Mariana and Julian are a couple that have been happily married for many years. They have two kids: Juan Maria and Bibiana. They are in love and are very successful in their professional lives. They have a wonderful sex life and in the foreplay that they enjoy in privacy, he tells her that she can have sex with other men if she tells him everything in detail. Mariana then has an affair with Javier Betanzos, a client of her company and an important investor, who commissioned her office to design an important beach hotel. But Julian falls victim to his alleged strength, and suffers depression. He leaves his house, and the children suffer from the feelings of neglect and abandonment. Mariana claims her innocence but divorce ensues. Finally Mariana proves her innocence, saves her family and can explore that unknown emotion.