The story of the difficult life of itinerant artists in Mexico and their futile dreams of happiness. Marin's father, a traveling artist, dreamed of saving money and sending his daughter to school. But his earnings were too small, barely enough to cover their most basic needs. And Maria continued to perform with her dogs. When Maria and the aerial acrobat Maurimo fell in love and decided to get married to start a new life, their dreams were once again shattered by harsh reality—they worked in different troupes, and Maria could not leave her old, sick father...

Three nymphets struggle to have a beneficial youth: Ana is suicidal, Mercedes is attracted to her brother William, and Patricia desires to be sexually abused.

The way three different generations of women view virginity and the mystery that a love story hides.

Mexico is in the midst of Revolution when the protagonist returns after studying in Paris to find his native town in Chihuahua occupied by Francisco Villa’s revolutionary forces. He visits his deserted home and remembers people and events from his adolescence that provide glimpses of pre-Revolutionary society under dictatorship: his uncle, the chief of police; his sister’s involvement with a liberal political association; bathing with the girls from a local brothel; a labor strike that ended in a massacre. Returning to the present he discovers that his father has been assassinated and, in the company of his father’s former servant, joins the revolutionary movement.

Perla, a prostitute and the star in a miserable cabaret in the docks, falls in love with a sailor without knowing that he is her brother. Tomasa, Perla's mother, tries to prevent this incestuous relationship at all costs, but fails to do so. Set in a sordid environment, the director makes no concessions in this tragic love affair, which is narrated from three different points of view.

Two secret agents are after a couple of car thieves who belong to a band of criminals headed by Ernesto. The band has kidnapped the son of Daniel, a boxer who is about to fight for the world title. The agents must destroy Ernesto's band and rescue Daniel's son before the fight so Daniel doesn't lose his chance at the title under the kidnapper's threats.

A group of friends plan to steal a companýs payroll, they succeed, but they have a fatal accident in the getaway car.

The young trapeze artist Alma is part of the show of a miserable traveling circus. In an act of desperation, Alma commits incest with her father, a sick clown obsessed with the woman who abandoned them. Determined to have his child, Alma leaves the circus and joins a group of preachers led by Refugio, a woman who performs puppet shows with biblical passages in poor neighborhoods.