I was looking forward to seeing this movie for weeks. Every time I would see a commercial for it, I would point at the TV and tell my husband I wanted to see it. I had watched the Discovery Channel program about the haunting, and I loved it. I came out of the movie theater VERY disappointed. The biggest flaw in this movie is that a logical reason is given for about 90% of the paranormal activity that occurred. The family's son has cancer, and he is on an experimental treatment. The experimental treatment causes visual and auditory hallucinations, and the son is the only one that sees the paranormal activity. So, when they son starts seeing things, he thinks it is a side effect of the medication and doesn't tell his mother. The writers attempt to explain why the son is the only person that sees the ghosts in the house later, but it just seems like a cover up to try and make the story believable. The other part of the story I found disappointing I actually discovered AFTER I had seen the movie. I started researching online and discovered that this movie is loosely, and I mean VERY loosely, based on a true story. There's a very interesting interview with the author of the book that the movie is based on at this website: http://www.horrorbound.com/readarticle.php?article_id=61. Anyone planning to go see this movie thinking that they are seeing a true story should really read this interview first.