Gor has a magic show to rehearse and his new assistant to get in line. But he keeps being distracted by a tapping on his window, four floors up. Tolya has woken from a long illness to find his memory gone. Tidied away in a sanatorium, he is delighted when young doctor Vlad decides to make a project of him. With a keen listener by his side, Tolya’s boyhood memories return, revealing dark secrets.