One-of-a-kind Chinese sci-fi that sets itself apart by combining Chinese tradition, belief, science, love and crime. The solemn mood, use of color, futuristic setting are all gutsy attempts by the director, and somehow it works. Even more difficult is combining the protagonists' own love story with the main flow of the film. The casts were also chosen correctly, as a film like this, especially in the Asian market must be led by more "serious" actors. The ending to me is a little questionable, while it makes sense, but seems a bit out of character as well. Nevertheless, an impressive accomplishment of piecing together a believable future. Love the analogy of this science to Chinese concept of "soul", there seems to be a lot more than what meets the eye to this film.