You may wonder why you are submitting yourself to horror films, but there is no doubt that they only succeed with a sure sense of cinema and a fair amount of cognitive intelligence. These things are PLANNED, dammit. Now Greg McLean, is back on the international stage to re-prove his clout in both these zones..
Variety has no doubt at all McLean succeeds, though the review scrabbles to describe the second two thirds of a twisted film without giving the game away.