This is an awesome game! I genuinely can't believe that someone made this in less than a week! I hope you cross the 20 rating barrier soon, because this game is so good, it most likely has all positive reviews!
That is not to say, however, that I don't have any feedback:
1) Yes, I know, darkness is pretty hard to pull off in games, so good job. However, never make any area in a point-of-interest completely black. While it does create a sense of atmosphere, having to go through these areas where I couldn't see anything was super annoying.
2) The puzzles were too hard. More accurately, the way they were implemented made them too hard. While it looks super-cool to see objects interacting with physics while you're moving them, it's not good if moving the objects is required for completing puzzles- I personally feel that once a player has devised a plan to solve a puzzle, the completion shouldn't be left up to the physics of your game alone.
Don't take this too critically though, the game is awesome! The graphics and music are both great, and give it a real atmospheric, almost eerie kind of outlook. Good job!