Amazing horror that burns slow but keeps you constantly gripped

Rating: 9/10 (3 October 2015)

Great and genuinely terrifying horror movie. It is very much so a slow burner but all throughout the film I guarantee you will be on the edge of your seat.
A lot of the negative reviews are obviously from people who are used to constant stimulation and aren't happy sitting and paying attention to a great storyline slowly unfold. If you class a great horror as "hostel" or "saw" then you may struggle to keep yourself entertained without seeing blood flying left right and center every two minutes.
However, if you really want to watch a smart and deeply metaphorical horror film this is truly one of the best in many years.