The story of a neurodivergent boy Petya. He is different from others. He seems to live on the other side of the glass pane separating his world from ours. It is difficult for usual people to understand Petya and it is difficult for Petya to adjust to the world which is too complex for him. But if we become kinder and stretch out a helping and supporting arm, then in this huge and diverse world there will be a place for everybody, even the most special person.