An industrial magnate is subjected to a heart transplant to save his life. During his convalescence, his secretary will take over most of his stock.

Dr. Henry Mills a very renowned cardiac specialist, disagrees with his wife, because of their religious beliefs, and more particularly because it encourages his son Ernesto to follow the priesthood. Mills is unfaithful to his wife, Isabel. She knows her husband's betrayal, and he secretly decides to separate, without sharing the marital bed, but keeping a secret from society.

A poor wretch dreams of becoming a traffic warden.

An ex-prisoner tries to get his young son back on the straight and narrow.

Carlos a young man who lives in the suburbs of the big city has ambitions and wants to change his life. Influenced by friends of doubtful moral character, habituated to frequent harmful environments. Little by little, he begins to see himself doomed to crime and one day he abandons his girlfriend, María, for Isabel, an attractive and intelligent woman who plays with him and takes him wherever he wants. When Carlos, once he has committed a robbery, realizes the nature of Isabel and his friends, and that he will never be happy in that environment, he tries to go back, but the violence of the facts will lead him to a bloodthirsty outcome.

Víctor is a handsome boy, skeptical and lover of the pleasures of life. He has no job or benefit and lives on women without realizing that his behavior triggers dramas and disappointments, pain and hopelessness.