After committing a crime, four fugitives intend to cross the border just to find the roads are blocked.

An outsider seduces and deceives a small-town girl, taking advantage of her innocence, in order to kill her mother.

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.

Duran and his team of the fifth group are secret agents missioned by Inspector Peña to find and capture a gang of dangerous criminals who are planning a major hit.