During the lunch break, the construction girls invite the pianist Marina to their roof. They talk about their dreams, about happiness. Marina will have her first concert soon. When she returned to her room and sat down at the piano, passersby stopped outside her window to listen to music.

For a long time, the chairman of the collective farm, Andrei Spirya, has been dreaming of moving the village, which lies in a lowland and is often flooded by floods, to the mountain. Some of the collective farmers are against resettlement. Suddenly, a severe flood occurred, which caused a lot of destruction.