The film is about street children who live permanently at Moscow railway stations. Bums, as they are called in the militia. You don't have to study, you don't have to clean up after yourself, you don't have to report to anyone. They don't want to go to school, to an orphanage, or to their parents. They walk, beg, steal, and swear. With the money they collect, they buy tubes of glue, squeeze the glue out of them into plastic bags and sniff its contents for days. They hold such an "inflatable balloon" in their mouth, breathe into it, and poisoning their brains, they catch "glitches".