Great tension build up. I saw this movie a couple month ago and I can still revisit the sense of desperation of some scenes of the movies from my memories. It also a good movie in the sense that the devil is in the details. If you are the sort of person that is meticulous and like to use your brain - then this is a movie for you. And those who like a good ending, this is the one. These kind of movies doesn't usually ends well, but definitely you will feel a tiny bit of consolation at the ending. So give it a try and don't let the poster put you off. The movie does summaries into a Chinese proverb, the miserables have their own sins.