There are quite a few movies like this peppering the horror genre. Indeed, after about 30 minutes, I stopped watching because I really didn't want to see yet another "perfect family" flick - especially as it isn't one of my favourite brands. But I read somewhere that it gets crazier as it unfolds, so I came back the next day to give it a second chance. And I was so glad I did.
This definitely subverts the cosy sub-genre and slices it up into its own volatile cocktail. I got a strong sense of satire and surreality - where nothing is meant to be taken too seriously, beautifully finished with the perfect ending to this notion. Like similar movies, it attacks the "apple-pie, happy family, white-picket fence" cliche, but here it is far more nuanced and, consequently, unsettling. You really are not sure what the characters really want as the plot turns challenge both them and the viewers.
As it turns out, this is a breath of fresh air to my pre-judging and weary eyes (nose). Special mention for the two very good lead actresses, and what is an amazing achievement on a very limited budget. Well done !