Martin is a bachelor and sculptor struggling to make a living in the city. One evening he finds in his mail a strange white envelope, unmarked except for the number "1011" written in the top right corner. Inside is a photograph of a room with ropes hanging from the ceiling. He has barely registered that fact when he is struck unconscious, and later wakes to find himself in completely unfamiliar surroundings, with only a house nearby to offer any hope of help...