A vagabond violinist, a shameless doctor, gunmen and an impossible affair.

Two gangs of drug traffickers try to control the monopoly of drugs in the city, while the police commissioner tries to kill them with the help of a snitch, "the puppet".

Tuberculosis and a passional crime prevent the final triumph to a boy from the slums who has opened his way in boxing.

A music teacher and a police officer look after a children's club.