The movie leads us to believe that there is a big mystery behind all the unexplained things that seem to be happening to the lead character played by Jodie Foster. After a long time of building the suspense a lame explanation is revealed and the movie plummets, betraying the viewer and not even bothering to tie up all loose threads left behind.
It's a shame because it's a very atmospheric and promising movie up until that point. The director sets a dreamy mood with technological surroundings filled with brushed steel, fluorescent lamps and soft shades of green. This part can still be enjoyed but the plot itself disappoints so badly that I cannot really call this a good movie.