Although the widower Jorge Llorente warns Elisa that every woman he had loved mysteriously died, she marries him.
Cristina is Jorge's half sister, who was born as a result of the rape of her mother by a crazy domestic worker.
Cristina, in her anguish, poisons herself, and before she dies she asks the son she raised not to forget her, and tells him that that Jorge and Elisa will make him believe that she is not her mother.
Elisa and Jorge, without knowing about Cristina's last deception, decide to reveal the truth to their son, who immediately despises his true mother and asks her to leave the house.
Before leaving, Elisa asks her son to accept a medal with the image of the Virgin of Guadalupe that she had given him in his childhood; her son takes it to throw it into the fireplace, but when he sees the medal, a memory from his childhood of his true mother comes to him, and runs into the arms of his mother.