Petya is a representative of the carefree Moscow youth, and in one day he goes through a test of friendship, love experiences and, finally, an awareness of the need for change.

Ten girls are waiting for arrival of the train. We find out from the conductor that it is delayed indefinitely. We spy on the girls from the outside and they figure it out. While they are telling their stories, sharing their problems and concerns, we are all waiting for the train. Will the train arrive? Where are they going and what are they really waiting for?

Garbage thrown out of the window during a party becomes a trigger for a chain of events that the guys can no longer stop.