Great film with one BIG problem

Rating: 7/10 (3 August 2015)

Double spoiler alert! Reading this review will ruin the whole film. It gives away the ending big time. Don't read this review. Don't even think about reading this.
OK, for those of you who have seen the film, what was the director thinking by putting in that one scene toward the end that ruined the entire movie? Totally unnecessary and weird and it brought the entire film crashing down around it.
I mean, why does he just stand there looking just a bit surprised when he has just had a long knife shoved into his torso? Any human being drops to the floor with that sort of injury. Like immediately. OK, I'm willing to suspend belief for a little bit longer. It was a decent film up to this point.
Wait. Wait. Wait. Still not dropping.
Whoops, look at that - he gets stabbed again with the same big long knife. This time in the front, right through his vital organs for sure this time. Can't miss the vital organs twice. OK, now he's going to drop. Finally. Now hes going to drop like a stone. OK, now. Now? How about now?
So a main character with no superhero or superhuman qualities is stabbed with a huge long knife through the torso, first in the back and then a few minutes later in the front, yet there he is, still standing and talking?
Absurd. Suddenly the whole movie feels absurd. Like you've been played for a fool, thinking this is a really good thoughtful film and then . . . what? Grade B horror flick?
Whenever I think about this movie, this scene is the first thing that comes to mind.
You can look now. He finally dropped and died.