Who was dancing in the house? Spoiler
Was it the kid that jumped out of the closet?
If it was the kid...what was it with the kid. How was he able to just run around in the house and be seen? Who the hell was he?
It was one of the Wondering Spirits that were attracted to the kid. Just like the guy that appeared in the nursery and the one that messed with the security alarm.
Why do people so frequently get told to "read the book" on a movie database?