Marianne Kravets, who works in the office of a Moscow company, considers herself perfectly ordinary—average looks, solid professional skills, a rather dull and overly meticulous character. To break up the routine and everyday life, Marianne visits the exhibition "Ancient Treasures of Varrawia," where she touches a mysterious stone without much faith that it will help a "lonely heart" find its destiny.
But something strange happens: the next day, Marianne is thrown into a stranger’s female body and a different world, where she must help an unknown man make his way through infected squares in order to deliver a vaccine to a research institute, while the stranger’s companion woman places the stone into Marianne’s body.
What kind of chaos is this, when you’re flung from your own world to faraway lands and back again? And how do you control the actions of the red-haired Layla, who is temporarily occupying your home? Perhaps the only way out of this complicated situation is to touch the mysterious stone once more—but to do that, she will have to find the exhibition again, which has disappeared without a trace.