Following the events of El pico, the heroin-addicted Paco faces jail time due to his involvement in a double murder.

Leandro, an unemployed mason and his friend, Tocho, attempt to rob a tobacconist in the Vallecas district of Madrid, but Mrs. Justa, the tobacconist, impedes it alerting the neighbors who notify police. Inside the shop, the confrontation between the two friends and their 'hostages', the tobacconist and her niece Angeles, is relaxing, and a budding sympathy arises between them.

In Madrid, a Lawyer gets the freedom for "El Chirlo" a usual 20 years old crook. Chirlo wants to thank Jaime, his lawyer, the defense and treat him for a meal with Rocio, Jaime's girlfriend. Jaime leave so Chirlo and Rocio go together to take a walk. Since then, everything turns bad.