This is being one exceptional shot short movie, that should not pass by unnoticed.
Even while probably chances are you not constantly going to fully understand what is going on at the moment on screen, you still get a grasp of its importance and gravity through its intensity. It's an intense short, shot in an extreme tense way, with some dynamic camera-work and a wonderful, effective, dark atmosphere.
It would help to first read what this movie is supposed to be all about, since it will help you to understand things that the movie doesn't just spell out everything for you. This is not a complaint about the actual movie but more as a friendly warning to those who are planning to watch it.