there were way too many unnecessary horror movie cliches

-roaches coming out of the wall
-flickering lights
-vomiting black/blood
-being possessed and tied down looking like the exorcist
-dog of course getting killed
-kid getting pulled through the air up the stairs like paranormal activity
-doors opening by themselves
-randomly graphically pulling out her bloody tooth

etc...it all just went on too long for me and took away from some of the really great/powerful scenes inbetween, like the dynamic switching from the kid being uncontrollable to being afraid of her, her yelling at him that she wished he died instead of the dad...but I guess it wouldn't have been a "horror" movie without that other stuff.