The tram worker Saba spends all his income in his drinking habit. His son usually tracks him down in cheap diners and pubs. The whole thing ends with his dismissal from the job. One day, tired of his way of life, he steals the keys from his former colleague and "hijacks" the tram. That’s when he kills his own son by chance. The workers’ court decide it’s not only Saba’s fault but his whole team’s fault too for not paying timely attention to him and calls for annihilating all drink providing cafeterias in the workers’ section of the city.