The story of two twin sisters separated at birth. Paulina is a kind, noble girl living in a poor hut with her ailing mother. Paola is a wealthy, calculating and debauched young woman. She has a rich, handsome husband, but that does not stop her from indulging in amorous pleasures with other men. One day the sisters meet, unaware that they are twins. In the scheming Paola's mind, a criminal plan forms: to send Paulina in her place to her husband’s house for one year, while she herself would amuse herself and travel the world with yet another lover. By circumstance Paulina agrees to carry out this plan and sets off for the house of Carlos Daniel Bracho, Paola's husband. And in that house not everyone is glad to see the returning villainess...