Because this is a British production, it's already feeling and looking somewhat different and more fresh from other genre movies. It besides is picking an original approach, that isn't always being a very likely one as well though.
That's really the problem with the main premise of this movie. It's good and original all but it's hard to imaging someone would really go through all that trouble, just to get the truth from some people. It lets the movie feel flawed in parts and not the best to watch but overall the movie is luckily being good and original enough to still consider this to be a watchable one.
The concept of the movie will probably be more than enough for the average horror lover to go and watch this movie and for them this will be a good watch, even though this is not a terribly graphic or scary genre movie. It really mostly relies on its main premise and it for most part handles this well, though the execution of it all definitely could had been more interesting and better thought through at times. This movie definitely had some more potential, though budget reasons probably also held the movie back from ever truly going all out on things and make this a truly great movie.
The movie also does still make some strange decisions with its story. It doesn't exactly have the best twists and story developments in it. It makes the movie somewhat ridicules and far from convincing but hey, this is a horror movie. People who will watch it will already have certain expectations of it and are more or less taking for granted already that this isn't going to be a movie with the most tight or most clever script to it. At least the story doesn't ever turn this movie into a bad one to watch. It's just also too fast going for that.
It's being definitely a better movie to watch than just the average and formulaic Hollywood attempt!
6/10