Just shy of maximum score because so much of it was so dark. Having said that I'm not sure I really wanted to see even more than I did of what was going on in this gruesome, gory French horror. A real achievement, particularly as a first film, this pulls no punches whatsoever and surely sends a clear signal to US film makers who seek to produce such fare. Don't mess about - just do it. But isn't this just the most harrowing and bloody, violent film ever? Well, maybe not ever, but that remains believable and involving from beginning to end. Where you want to look away but the action is so compelling you cannot. When you hope maybe there will be a pause in the nastiness but the makers just crank up the awfulness again and again. I have never seen a female attacker be so violent or so relentless outside of Japanese cinema. A remarkable achievement.