I have to say I was disappointed. It was all psychological but the flashbacks that are meant to explain Ma's behavior barely do so. There are definitely missing links in the chain of events that lead up to her horrific actions. The storyline with her daughter is completely undeveloped. There are a lot of plot holes in this movie. Overall, it was boring. There was not enough suspense for it to be an interesting thriller, nor was there enough horror for it to fit neatly under the category "horror." Really, it's just a twisted psychological drama that begs further explanation.