Seen PA long back. Had many expectations asusual, but was satisfied 50%
I too watched the movie in the night with all lights turned off and with max volume enough to disturb my neighbors.

The bed drag scene creeped me a lot and more creepier was the last scene. Even more crappier is the alternate ending(Theatrical).
Good imagination for the director to creep us, but the logic is totally defied like in south movies.