Lukas has lived on the top floor of his building for five years. He knows every crack in the walls, every flicker of the hall lights. But one night, everything changes. A silver button appears on the elevator panel-an eleventh floor that shouldn't exist. When the doors slide open, he finds an exact replica of his own life: his hallway, his apartment, his coffee. But there's someone inside. Someone who looks exactly like the mother he lost years ago. As the boundaries between his reality and a twisted reflection begin to dissolve, Lukas realizes that curiosity hasn't just led him into a strange room-it has trapped him in a cycle of grief and madness. And something on the other side is hungry to take his place.