a fine movie, good for a couple or group of friends who don't really watch horror n want something spooky for halloween. but, if you want something REALLY scary, something that has you shivering your timbers, i'd recommend something like sinister.
cadaver's okay, it has you thinking about the movie and keep up with each main character, and leo's actress did phenomenally on her part– but that's more on an actor's standpoint. from a seasoned horror fan's standpoint, it'd probably be average.
tl;dr, good for someone's first psychological horror, not too great for a regular horror enjoyer.