An unpunished injustice has brought three former prisoners to a small town in the north. They were, at one time, both tormented by the same secret service agent (Jirí Lábus). Now he owns a pub in this town. They decide to take justice into their own hands, longing for revenge. They find out, however, that they don't have a talent for it... They meet a girl off the street, who they give a warm place and a roof over her head while she, in return, helps them to understand the difference between revenge and punishment. And so they defeat injustice, their enemy, by forgiving him. And that is a painful punishment.