After her estranged brother's sudden death, young wife Lucia bonds with his fiancée through their shared grief and finds herself falling in love.

In Spain of the 1960s, a poor family of quinquis - a nomadic ethnic group with a tradition as old as that of the gypsises of Spain but with even more obscure origins - have a nomadic life marked by poverty. The son, Eleuterio Sánchez Rodriguez, nicknamed "El Lute", steals some chickens and is condemned to six months in jail. El Lute moves to the slum outskirts of Madrid with his common law wife, Chelo, starting an itinerant life as a peddler of pots and pans and living in a quinqui shantytown. He gradually embarks upon as life of petty criminality, eventually participating in the theft of a jewelry store during which a bystander is killed.

A chronicle of the life of Jaro, the leader of a juvenile delinquent gang, depicting his rise from street urchin to outlaw anti-hero on the way to his inevitable end.