Very well made film, very hard to watch. I'm local to where this happened (and shot) so seeing a lot of locations I recognise in the film probably adds to the whole feeling of unease I had while watching it. If I was watching this at home I probably would have stopped half way for a break it was getting pretty uncomfortable, there was a time in the cinema I almost felt like leaving.
A lot of dread and mistrust between the characters, lots of overcast and dark shots, or shots framed though a doorway like your peeking in. Some of the most jarring things in the movie is the way a television will be playing in the background with some recognisable moments, like Tony Grieg talking about a Boonie print, or Rex Hunt doing his Yibbida Yibbida sign off, whilst the most horrible scenes are playing out.
The Snowtown Murders were just an horrific series of acts. I've heard good things about this movie, considering the material, but I don't think I'll ever watch it.