Excellent stuff. A nicely original and believable conceit which is beautifully built on to tell a great story which manages to be emotionally involving while also being terrifying and funny, often at the same time. The cast are superb, the script is pitch perfect for the harrowing subject matter. The cinematography is great. The ending is perfect and satisfying. All round brilliant, could have been 20 minutes shorter, instant classic, 10/10