Raquel Lomelí, a beautiful and cultured young woman, gets ahead without her father's help. She works as an associate at the Lara and Lomelí agency. During an earthquake she meets Román Ortega and he falls in love with her, but what he doesn't know is that Raquel is the daughter of Emiliano Lomelí, "El Tiburon": a cold and unscrupulous man who has stripped engineer Jorge Lara of his property and health, a man whom Roman admires in every way, without knowing that he is actually his father.