Marta Parejo and Daniel Luna appear to be the perfect couple. He is a successful lawyer and professor at a prestigious university and she is a marriage and family psychologist that writes books about romantic and sexual theories. However, everything comes tumbling down when Marta says in her book that her husband is completely inadequate in bed. To this fact that clouds the relationship, is added an alleged extramarital affair by Daniel with a student named Verónica Dávila, but who in reality is obsessed with the professor, raising rumors and the appearance of Fabiana Rivera, a young and beautiful nanny hired by the couple.