Orphan is about an orphaned girl named Esther who has a very hard time fitting in with any family she is with and every foster home she stays in, until a family who has just recently lost their child decide to adopt a new child to fill in the void. Everything seems perfect for the family, until Esther starts showing some strange habits, such as playing the piano like an actual pianist, even though she started learning only three days ago, sudden intelligence, and same very mean habits. This movie is one of the best psychological thrillers I have ever seen, it scary, thrilling, confusing, and dark. It has a very interesting story line and and a great build up to the final act of the movie, the only problems I have with this movie are a few continuity errors, plot holes, and some off acting at times. It also had a few scenes when the characters in the movie can make you get agitated with them for either being idiots or some of the things they say, but all an all, this is a very good psychological thriller that in my opinion, is very underrated.