Another brilliant example of screen based design that allows the viewer to directly interact with it. Before starting the animation you are prompted to turn your webcam on and turn on all the lights. A room then appears with a little girl in bed asking for you turn the light out... which you do in your own room, the webcam responds to this and the lights go out on screen. Then what follows is a series of lovely illustrations growing from each other, which appear to be the little girls dreams. These illustrations continue until you turn on the light and are greeted with an image of the little girl being woken up and rubbing her eyes.
I think this is brilliant, it breaks the normal conventions of other interactive screen based designs. It thinks outside the box, and something as simple as turning your own light on and off certainly adds to the atmosphere of the animation.