If you don’t have friends, no work, and nowhere to live, it’s so tempting to respond to a random advertisement in the newspaper! But when Polina Averina crosses the threshold of her dream home, she doesn’t know that beyond that door are waiting for her terrible crimes and real love, broken illusions, and confrontation with a mysterious order.
What happened to its previous tenant? What secrets does the mysterious house keep? And what is its owner so afraid of? Will he help Polina—or will he himself need the help of private detectives Makar Ilyushin and Sergey Babkin?
Will that room open itself to Polina? Or maybe some doors are better never to unlock…