Do not look back and be silent

Imagine that there is a place on Earth that seems to be frozen in time. A place that can hide anyone who wants to escape from reality. Imagine that to get there, it is enough not to look back and be silent. There is only one problem: in this place, sometimes things occur that are more frightening than what you are hiding from. The life of Grozan family suddenly changes. They move to a new home, and fourteen-year-old Mark is forced to go to a new school. The boy is well-read, smart, but very shy - the perfect target for bullying. While hiding inside himself deeper with each day, he dreams of a world where there is no bullying and gratuitous violence. One day, Mark meets Sonia, a girl from a parallel class, who tells him about the existence of such a world and the possibility of getting there - just using the elevator in their house. The guy does not understand why Sonya invents nonsense that is easy to refute, but eventually goes after her. He has no idea that a simple trip to the tenth floor threatens something far worse than destroying ideas about the real world.