The official description of Nuit Blanche does a good job of setting you up for the plot involved:

Nuit Blanche explores a fleeting moment between two strangers, revealing their brief connection in a hyper real fantasy.

But it falls pretty short in terms of the level of impressive amount of compositing and stylizing that has gone on to create this world. The Making Of is nuts. Watch both - you\'ll enjoy it.

Via Keith.