I had a lot of fun with this one. I loved the style, I loved the concept, and the dialog was pretty funny too. I got stuck for a while, but it was entertaining enough just possessing everyone and having them talk to each other. The little girl was my favorite, but the old lady was funny too.
I wasn't expecting the ending either, the clues seemed to point to somebody else, and I was pleasantly surprised at the end, though I was a little disappointed that there wasn't more game. My only complaint is that it wasn't very long, but that's pretty minor. I just hope your next one is longer!