the loft above the flat in darkness, but the trapdoor is opened, letting in a pool of light. david moves on into the dark cavernous loft, edging his way across beams and pipes. there are no skylights. david sits still in the darkness. looking down from a hole in the ceiling, we see into alex's room, where he is getting dressed. david scurries back across the beams to look down through another hole. he looks for several seconds. david is still looking down through the hole. david still watching. david sits back suddenly, recoiling from the activity. he scrambles back across to his mat, where he sits back down and closes his eyes. then he opens them and scrambles back to look down again.