Directed by Sara Gómez, the film mixes documentary-style footage with a fictional story that looks at the poor neighborhoods of Havana shortly after the Cuban Revolution of 1959.

It demonstrates how tearing down slums and building modern settlements does not immediately change the culture of the inhabitants.

[1] Final work was initially credited to Tomás Gutiérrez Alea and Julio García-Espinosa before its posthumous release in 1977.

[3] Yolanda, a female teacher, cannot find the best methods to teach the marginalized children of the Havana slums because of their different origins.

Mario, a worker in a bus factory and a typical macho man, is confronted by Yolanda's instinct for emancipation.