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 her, 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 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, but his wife, Apolonia, treats her with contempt.
Sebastián lives with his adoptive family, who has always rejected him. One night, Sebastián defends his brother Eduardo from a drunkard, but is blamed for the murder of the attacker and sent to prison. Years later, Natalia and Eduardo become friends in college, but Eduardo falls in love with her. Sebastián is released and meets Natalia again, and they confess their love for each other. However, Apolonia tries to force Natalia to marry Eduardo, who falls gravely ill. Natalia must decide whether to marry him out of compassion or be true to her heart and defend her love for Sebastián.
Based on: La loba herida (1992)
