Take a dollop of 'Dont Look Now'
2 scoops of the 'Evil Dead'
1 scoop of 'Blair Witch'
and then filter them through David Lynch.
Leave for 60 minutes until its rife with pretension, and then pour ingredients over the entire plot of cracking 1978 oz film 'Long Weekend' (check it out on IMDB peeps) and hey presto, you have a new genre of movie: 'Middle-Class Horror'! - and I mean that most derogatory folks!
The only shocking thing about this flick, is that anyone could find it shocking. If you want shocking, watch 'Martyrs' - it kicks like a mule! - if not, shell out £10 and prepare to be disappointed by this silly nonsense.