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.
Esteban confesses to his friend Kenzo that what he feels for Paz is not a physical attraction, it is actually something deeper. While Lupita recognizes that Luna has a lot of energy, the little girl suffers an accident that puts Paz in a dilemma. Dr. Mónica Manzano identifies Luna as the girl that Ginebra is looking for. Ginebra imagines a romantic moment with Esteban, but she knows that she should not fall in love with her.