The disaffected wife of a failed civil servant, is thrilled to re-encounter Octavio, a former lover who is now a union activist on the run from a corrupt politician. Hoping to help him, she descends into the Mexican underworld, where she finds a purpose-and a thrill-missing from her married life.

A magician suspected of having killed a colleague is arrested by the police, but his assistant helps him escape.

En el Guanajuato de mediados del siglo diecinueve, la belleza y simpatía de la joven heredera Amalia conquistan al humilde capataz Ricardo con resultados funestos. Impedido para consumar su amor, Ricardo se va de Guanajuato adonde vuelve tiempo después convertido en el rico dueño de una mina. A su regreso, el destino le tiene preparado un trágico reencuentro con Amalia.

A young woman, abandoned by her womanizing fiancé, is forced to provide for the upbringing of her son and combat the difficulties of being an unmarried mother during the strife of early 20-century Mexico.