Loved it! I actually cared about the characters and was so realistic I was on the edge of my seat, unlike a typical Hollywood film, actually having no idea what was going to happen.
It doesn't obey any of the usual rules, which adds to the suspense. True Survival Horror as the couple is pursued by a group of adolescent thugs whom one could imagine existing in real life.
Kept me guessing until the end, which was excellent for the record.