Same here.One of the few times I've yelled at the screen while watching a movie. It was pretty good for the first half, but that ending is beyond shit.
Man, the movie was building up this fresh take on horror genre, we had our guy who was a paranormal activity scam detective, debunking fakers left and right and it slowly builds up the tension and everything. It had some legit scary scenes, with a bunch of freaky weird stuff going on. And then they did that ending. I was so pissed. What were they thinking.