This isn't a jumpy-scary horror movie, it's dark and creepy. Through flashbacks, you get to see what life was like for a young girl who used to belong to a cult. This is the creepy part; its being realistic and believable makes it more frightening and disgusting. Having escaped, Martha has to face all the fear caused by what she and the other members of the cult did. This is the sad part.
I haven't watched many movies/TV series this summer, which is strange. My attention span is getting shorter and I have no tolerance for dull films. This was a very interesting one, albeit depressing. And who knew that the Olsen twins had such a talented sister (Elizabeth Olsen)?
Thanks to Emma and my sister for recommending it.