Liminal Echo

He saw the overwhelming yellow color and heard the footsteps and gasps echoing in the distance. He couldn't tell whether they were coming from others or from himself. Some people stepped on the air and fell into the silent void; some people left bloody words on the wall - don't trust the person behind the door; some people saw themselves smiling on the old TV. At the end of the layered space, the radio is still broadcasting: "If you can hear this recording, please remember - there is no exit from the back room."