Don't get me wrong, the idea is good but there's no plot to the movie. You feel me? Just random bunch of stuff happening with teenagers, nothing else. Also, the ending was stupid. I expected something better.
Spoiler ahead.
The girl gets absorbed in the tree...and that's it? Like, you could've showed where he takes them, what he does with the children or some way through which the little sister tries to extract revenge on this guy. The only way to save this movie is to have a part 2. The animation and scare was nice. Would I see this again? Definitely not.