This movie is a shrewd deception: they make you think that you're boarding on a serious psychological thriller, and then, three-quarter into the movie, they blatantly throw in the supernatural card. Even worse: the very last scene suggests that the whole set-up of the story was a sham, making the earlier 90 minutes in fact redundant. So calling movie and story unbalanced is putting it mildly.
The premise is potentially not that bad: somewhere in the woods, four friends drive an unknown girl dead, they find that she carried a duffle bag with 2 million in cash, and then they decide to run off with it. What unavoidably follows is a psychological game of greed, distrust and violence. Then suddenly a stranger pops up, claiming that the money is his. Even up to this point there were already tons of plot-holes and improbabilities. Like who are these four friends, what is their connection? Why didn't they search the dead girl for her identity or for some clou as to the origin of the money? Why didn't they ask the stranger instantly for his name, or how he knew so much about them, or search his pockets? Why not immediately try to kill him, or at least put a sock in his mouth to stop him from constantly taunting them and stirring up their mutual animosity?
But then, out of the blue, the already mentioned supernatural card is thrown in, and exasperated this made me fall back in my chair: come on, seriously?!? I guess the writer thought it a tremendously original idea, but to me it impressed mainly as tremendously lazy, and as an insult to my brain as well as to my dutiful watching this lame movie out.