He was thirty-five years old when he found himself in a strange place and in the first minutes he experienced an unbearable headache. Fear took over him, and for a moment it seemed to him that this was the end. But that was just the beginning... Someone's voice was heard. The light came on. The pain has subsided. And he realized that he was in a room with light walls, where there were no windows or doors, but only glass, behind which there was a mysterious stranger, whose face it was impossible to see. What kind of place is it? How and why did he end up here? And who is this man behind the glass? The main character has yet to find answers to these questions.