It is an amazing, if short, experience. However...it's story is absolutely nonsensical and the cheap fmv's do not contrast well with the beautiful 2D animation during gameplay. But it's an unforgettable gameplay experience. Just be prepared to die. Alot. Gruesomely. lol the E rating is a liar!
http://www.youtube.com/watch?v=jYyZfME5XYY
Watch if you wanna see what I mean. Utterly terrifying. That poor kid. All to save his damn dog too,lol.