I honestly don't understand the really nasty reviews here. This is a very well directed thriller with some great acting from the leads & well worth a look. If you are fond of one location thrillers with a good build up of suspense & tension along with fine character development you'll enjoy it too. If you're looking for an action-packed thrill-a-minute flick this is not the movie for you. I loved the performances of all three leads - the little girl was excellent - and I thought the direction was exceptionally good - I look forward to seeing what the director can produce in the future as he develops. I have no idea why so many people these days think movies should be direct copies of reality - that's why they're movies. They're not going to be "real" - for that you need to pick up a documentary. That said, the premise of this movie, while requiring some suspension of disbelief, does not stray as far from believability as some of these reviews would have you believe. It's not brilliant or perfect but it's a good watch.
