Natalia Ríos is a lovely young girl who lives with her aunt Inés. Her aunt’s husband, Arcadio, is a shameless man who tries to rape Natalia and ends up selling her into white slavery to a gang of thugs. One of them, Valente, takes pity on the innocent young girl. He saves her and they both run away, but are soon found by the criminals. Valente confronts them to give Natalia a chance to escape and is badly wounded. Natalia is able to get away and goes back to her aunt, only to find her on her deathbed. Inés tells her that, from now on, she must live with Doña Carlota at the home of the wealthy Serrano family. When Natalia arrives at the mansion, Don Teodoro and his daughter Sandra welcome her with open arms, but his wife Apolonia, Doña Carlota’s daughter, treats her with contempt.
