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, knowing that Esteban will not rest until he returns Rubio to prison, advises him to forget about the case since it will harm him, but more so his children. Elvira, upon finding out that Nandy will work in her company, runs her; Esteban and Kenzo come to her defense. Paz accepts in front of the doctor that she is not Luna's mother and assures her that she had to lie to protect the life of her youngest and hers. Paz informs Luna that they must separate since she has to return to her mother's side. Fermín puts together a plan to get the minor out of the hospital.