So since you enjoyed the movie I have a question for you.
There was no explanation for why Elise’s dad then the guy who later bought the house kept random women locked up in the basement. What did that have to do with the story line? Sure they were possessed but what was the need for them being locked up?
it was the demon making them do it. It showed in the further the demons realm with it having all the people in the after life locked up. Why the demon did that or why it forced people to do it? That was never explained. Personally I had no problem with them not explaining why the demon wanted to do that because I find with horror not knowing is more effective than knowing. I can understand having a problem with it if you like having an explanation but didn't bother me.