Every Saturday fireman Anton Kalashnikov welcomes his 14-year-old daughter Kira from the dance. TV, dumplings for dinner - a standard set of entertainment from a Saturday dad for a teenage girl. But on this day, everything went wrong. Kira rings the intercom, Kalashnikov opens the front door, but the girl does not go up to the apartment. Anton has to ask for help from his neighbors in a concrete box, breaking through human indifference and past grievances.