If you have seen the preview to this movie, you already know what to expect from this movie. However, the director still have a few tricks up his sleeve to toy with the audience expectations on the characters in movies like this; which made it thrilling fun to watch. Tony Goldwyn is now the official actor who corner the market on creepy-everyday-man-role that he started playing in the movie Ghost back in 1990. The short running time also help speed the movie along. At the end of the movie, it sets up a possible sequel when it show a broader scope of this so-called experiment on a global scale.