Hahahahahahaha ...... I wish I could say this one was so bad it's good, but .... no. It's just bad.
"Orphan" is about a couple who adopt a little Russian girl with ....... ooooooohhh ......... a deep secret, and the whole thing is just so bad it's reedonkulus. This piece of crap actually got some good reviews on IMDB, which is pretty much mystifying.
So! You can skip "Orphan". If you want to watch a "bad kid" movie, try "The Bad Seed" from the fifties - that one's actually pretty good.