Anya Vasilieva is a girl from an orphanage for difficult teenagers, who has a whole list of problems—from already ordinary beatings to her mother’s disappearance. Everything changes when Anya’s imaginary friend, her shadow Tanya, appears in the real world and becomes the heroine’s best friend and the favorite of the entire orphanage.
But one day she disappears without a trace, and everyone around her seems, with a snap of the fingers, to forget about their classmate. Confusing? Quite. Anna thinks so too. Feeling out of place, she has to live through the changes in the world around her and find the missing girl. But will it work out?