Time Out says
The six months are nearly up. Another few days of voluntary captivity under the ever-watchful eyes of a hundred webcams and the five housemates will be home free - and a million dollars better off. But when Danny gets word that his grandfather has died, the group is unwilling to forfeit the prize so he can attend the funeral. And when, instead of the usual package of supplies, the contestants receive a bottle of champagne and a loaded gun, can they convince themselves that it's just another mind game, that survival is not at stake? A disturbing renovation of the classic 'old dark house' blood-chiller, this takes the logic of opportunism and runs with it. The film is shot entirely from the fixed vantage points of digital surveillance cameras and, in keeping with the tenets of voyeur TV, the contestants are noxious exhibitionists willing to endure any humiliation so long as Big Brother keeps watching. In the most chilling scene, they discover that this may not be the case - that their imagined fame doesn't extend beyond a handful of sadistic high-rollers. A nasty piece of work, but we probably deserve it.