OMG - i cant believe how many people "dont get" this movie. Yes is a formula or typical genre flick...but it supposed to be!! Yes its filmed in an amatuer style....its supposed to be!!! Yes, the acting comes across as improvised and pretty casual.....its supposed to be!!! What we are left with is a very non-hollywood horror/thriller that if you can pull the stick out of your butt and suspend a little disbelief, will scare the pants off you. I thought this was way better than most hollywood versions of this genre. The character development of the 3 main characters was great...and as for the lack of a backstory for Mick.....i dont think he needed it...sometime nutcase killers are that way for no reason at all! He lives in the outback...that would send anyone a little wacko.