Mariana is a poor young woman who is left alone in the world and must make her way in life. When she saves the life of Alberto Salvatierra, in gratitude he takes her to his house where she meets Luis Alberto Salvatierra and they fall deeply in love. To carry on their relationship, Mariana will have to overcome obstacles of social class, education and traumas, while being surrounded by ambitions and betrayals. When Mariana and Luis Alberto are able to realize their love, life will bring them a tragedy: the loss of their son.

A promise to his mother led him to become the best musical and movie star of the Golden Age of Mexican cinema; his songs and characters went around the world, and when he seemed to have everything, death tragically took him away.