After the mysterious disappearance of an oil well owner, one of his workers, Gerardo assumes the business management. Soon, the owner's sister arrives from Argentina, and, believing that Gerardo killed her brother to keep the wells for himself, she starts working as a singer under a false name in the same casino her brother disappeared, in order to find out what exactly happened.

Back from vacation, Lucy, a school's music teacher, misses a boy. People say he will not return because he recently lost his father. She is very affected by his favorite student, so she decides to go to see him, finding the house in utter ruin. But chance makes Lucy forced to take the child and immediately found in him the son that was kidnapped years ago in America when she was a famous artist.

A widowed doctor with a sick child marries a famous singer unpremeditatedly, running at first everything fine until she begins to long for his former life and scenic successes representing the only reason for existence.

Soledad, a maid born in Argentina, works at a Mexican farm. The son of her employer will deceive her, pretending to marry her and leaving her pregnant. When she finds out that she has been tricked, she runs away from the farm. During her flight she meets a group of artists that'll change her life.

In Guanajuato, a piano teacher delays her marriage to an engineer not to let her younger sisters alone. As he is love with her voice, he is mistaken for a sister whom he marries. The teacher then goes to the capital. There she becomes part of a family of young students, who believe she is the mistress of his father, so she suffers the scorn and reproach. Over the years the parents die and she renounces to the inheritance they leave her.

Twins (both played by Infante) are separated while very young, one raised as a singer by their widowed mother and another as the heir to one of Mexico's richest families. Their paths cross in the future, but they are unable to recognize each other due to their very different social backgrounds.

Motherhood-and-martyrdom melodrama.