Set up the rules, follow them, and I'm with you all the way. But this movie's big, dramatic final scene doesn't feel like a big, dramatic final scene. That's all she does. She stands there and shouts a little and the ghost is then obliterated. There's a little explanation about what the carvings on the door mean, but there's absolutely no logic to the film at all.
People go to a house.
They get scared. One character stands in front of a door, and the house is no longer haunted. Avoid The Haunting . Go see The Blair Witch Project if you want to be scared. At least the movie got my mind off of the wretched interviews I was on today.