Dr. Rodolfo Arias, a controversial and corrupt lawyer, is the victim of an attack and he points to his two enemies Miguel Guevara and Javier Roldán as the ones responsible. Faced with this situation, Guevara proposes to Roldán a plan to assassinate the lawyer. Fucho, a young criminal whose brother had been a victim of Arias' corruption, together with two other thugs, would be responsible for perpetrating the murder.
Jesús María Carmona is a small-time crook who poses as a cop so he can rob a bank. A few days before the day he planned to do it, a guerrilla group robs the same bank and Carmona is shot to death defending it when he has no other choice but to act as a policeman. Soon after, his image becomes a symbol for the police and he is honored, but his identity is found out. Meanwhile, in the neighborhood where he grew up his effigy is burned as he is now considered a traitor.