After indulging in an affair with a man (a friend of the family) she truly loves, a woman returns to her young son and husband for good, and loses contact with the man. Her husband is unaware of the affair. Twenty years later, there is news that the friend has died and left all of his money to the younger son in the family, which leads us to question this younger son's biological origin.
Rosario Granados
as Rosario
Tito Junco
as Julio Mistral
Julio Villarreal
as Don Carlos Montero
Joaquín Cordero
as Carlos
Xavier Loyá
as Miguel
Elda Peralta
as Luisa
Jaime Calpe
as Carlitos
Eva Calvo
as Rita, enfermera
Miguel Manzano
as Doctor
Ricardo Adalid
as Cliente de Carlos (uncredited)
Daniel Arroyo
as Invitado a fiesta (uncredited)
Rodolfo Calvo
as Don Feliciano (uncredited)
