This film was brutal, graphic, emotional, and shocking in parts. The story was well written, and well acted. Sean Pertwee plays the part of a mean and horrible army officer, and I found myself hating him so much - I put that down to how well he played the part. The main character ("Angel" played by Rosie Day) was also played perfectly, as she doesn't speak a word in the whole movie, so the role relies on her acting ability, which she does so well. Some parts of this film are brutal and gory, but that makes this movie even better as it shows the emotion of the story line, which in my opinion is portrayed perfectly in these scenes. The first 15 minutes of the film set up the plot - and it is pretty confronting. I felt emotions that I haven't felt for a while from watching a film, and with every new scene I was heavily involved and interested to see how it turned out. I have to say this film is one of the best drama/horror movies I've seen in years. I would have to give it a solid 8.5 out of 10. Highly recommend it, just do not have children in the room when watching it.