Paz Roble, a kind, hard-working and honest woman from whom her husband, Fermín, takes her newborn daughter. Fermín has a large debt with some lenders and to pay it he decides to sell his daughter to Mauro Nicoliti. This plagiarism is orchestrated by Geneva, Mauro's adoptive sister. She lost her first-born daughter in childbirth and does everything to replace her dead daughter and keep her husband's fortune. On the other hand, Esteban Villa de Cortés loses his wife and becomes a widower with his three children. Elvira Moncada, Esteban's mother-in-law, holds him responsible for the death of her daughter. After a series of unexpected events, Esteban and Paz meet in the neighborhood where she lives with her family. The chemistry and great understanding that exists between them makes it inevitable that they will fall in love.
Ginebra confesses to Elvira that she has an interest in Esteban; she cannot believe that the man she detests so much has fallen in love with her two daughters. Elvira gathers the whole family to confess that Ginebra is the daughter she had years ago, but that her father snatched her from her arms. Paz is willing to end Fermín's life if she proves that she was able to sell her own daughter. Paz takes advantage of the fact that she is alone with Fermín to confront him about the possibility that she has sold her daughter to get out of her debts.