A thoroughly dissatisfying, undisciplined and gratuitously self-indulgent mess.
If you've seen this movie you will know what I mean when I say, there is no way of making sense of it. While the acting is good, and the cinematography is very well done I cannot but give it a poor rating. The "shocking" nature of it is well done, raw and impactful--but utterly pointless, so it comes across as as a purely masturbatory exercise on the part of the filmmaker which leaves one feeling icky and gratuitously violated. I want to make it clear that it's not the graphic nature of the film itself that I have any objection to.
What actually _happened_ in the movie is never revealed--an unforgivable offense for this reviewer. Technically well executed, but poorly contrived. A maddeningly irritating waste of time--in this regard, a "study in insanity" is an apt description. If films are about taking the viewer on a journey, this one is like realizing you've got into the cab of a lunatic and you just hope you can get out somewhere close to where you need to be unscathed.