Loved it. Sharlto Copley needs to get more films, seriously. He carries off this little gem almost entirely on his shoulders, ably supported by a decent-enough cast and a wonderful storyline which unfolds more surprises as it goes on. Similar to
You're Next in big-film-feel-on-a-budget, wonderful atmosphere, some really genuine scary moments, and a very memorable ("
holy sh-!") climax.
NE, you have to watch this, if you already haven't.
* * * ½