I am not surprised at all at the negative reviews. This movie starts well, sets up the story well and then falls flat so hard it's like taking the popcorn out of the oven as soon as one pops - it smells nice, but in reality you're left with only hard, tasteless kernels.
Let's address the elephant in the room. This is NOT an intelligent movie. However, it does have enough pretentious cinematography to make some people think it is. That being said I am a fan of said cinematography AS A SET UP, but not as your entire substance. I have no idea why some people are calling this innovative as it simply isn't. Long drawn out shots of a darkened empty hallway or a window while someone frantically plucks at an untuned violin and radio-filtered whispers is neither ground-breaking not original. Yes, it's uncomfortable so overdoing it will elicit an emotional reaction, which some people mistake for the effect of good writing.
Now, beyond the elephant. The story goes absolutely nowhere. If the movie is original with anything it's that the ending is so mediocre and so little attempt has been made to make it interesting that it's a rarity in the genre. If you know there is no twist ending you can guess the finish a good 15 minutes after the word go. The characters are profoundly unlikable aside from the dad, who appears briefly at the beginning and the end. There is "creepy" scenes which go nowhere and have absolutely no explanation, nor do they contribute to the plot (I am looking at you 100 snow angels).
That being said I do appreciate movies which try to at least get part of the equation right and this one, as stated above, has a good first part. Now, if only movie-makers learned that you need to know how to finish a story too. So, while I wouldn't wholeheartedly recommend it, if you're into eating only the first couple of popcorns of the bunch and being disappointed by the rest, go for it. Just be warned - the moment you start asking yourself "ok so where is this all going" is the moment when you know the movie is well past its peak".