'Knivers') is a 1980 Spanish-Mexican action drama film, written and directed by Eloy de la Iglesia and starring José Luis Manzano, Isela Vega and Jaime Garza.

[3] José Manuel Gomez Perales alias "El Jaro" is a fifteen year old with a long criminal record that includes among other things: 29 escapes from reformatories and three wounds in confrontations with the police.

The four friends form a dangerous gang who steals handbags, coins from public payphones, cars and motorbikes.

Without a place to stay, El Jaro settles with Mercedes, nicknamed "La Mexicana", a prostitute twenty years older than him.

Meanwhile, a journalist, who reports on juvenile delinquency, chronicles the dire circumstances of unemployment and hopeless of the youths in marginals areas of the city and the links between poverty and criminal activities.

While having ice cream, El Jaro is about to be discovered with his gun hidden in his backpack by two undercover policemen, but he is saved by Mercedes who distract the officers.

Leaving the motel, El Jaro and his gang are pursued by the police but they manage to evade the authorities, fleeing through the roof top to a ballet school in the next building.

Lara, a detective, is put in charge by the commissar of police to investigate El Jaro's assault of the motel.

The large gathering of juvenile delinquents draws the attention of Lara and the commissar, but El jaro refuses to tell what had happened and he is sent to a reformatory from which he promptly escapes.