What On Earth is Ilya Khrzhanovsky's 4?

Oh, sweet lord ... I'm not even going to try and summarize what I just saw ... it's like Tarkovsky on crack making a gore film. Simultaneously beautiful, compelling, minimal and truly unpleasant. Body parts removed, others burned, that sort of thing ... it seems to involve nuclear science and cloning to harvest body parts. Sci fi? Horror? It just flat out defies description ...

Trailer (downloadable Quicktime, 5 meg)