Well, very nice and somehow unique story, very well acts, music was also nice. The only problem I saw it was videography, which was technically a little bad specially on wide angles. For example in hospital when the doctor us talking to Ben about pills, you can see wide angle lens caused the curve lines. By the way, the only reason I didn't give this movie 10 it was just because not good videography in some scenes.
I really liked the movie and the story, reminded me The Others. It is the kind of movies that you can not predict the end.
Very well done, worth to watch twice, or even more.