The story of one summer of several high school students from an average school in an average town in the very heart of Russia. The main characters of the film are classmates of the same girls whose double suicide, a jump from the roof of a high-rise building, a couple of years ago shocked the country and provoked a wave of teenage suicides. Who are they? Which? Do you need someone other than yourself? What do we know about their loneliness? And what, in fact, lies behind the statistics of teenage suicides, according to which Russia ranks first in Europe.