I think the movie has a deeper sense. With Anna struggling with what to believe, Elliot offers her to walk through the door, after hearing her emotions. Its almost like he had the power to either pull or push you. Depends on his judgment of you. The little kid was really good (creepy). I kept postponing to watch this one for a long time, feeling it'd be just another horror. But it is really a good movie. You really attune to every character's emotions related with the decisions they had made. And, of course, to the ones interpreting; its deep. A good emotionally haunting one. One of the good movies I watched ever. Do give it a try. 10 on 10.