A few edits...(spoilers)

All this movie needs is a few edits here and there and it becomes about a delusional man and his group of concerned friends.

Especially the circle scene at the end, seems like they are just humoring poor Richleau until they can get him the help he needs. Then when he starts cooking the blood to revive the spirit of the dead girl, they're all concerned glances, like, "ok this has gone too far!".

Great movie!