Odd.
The melody which the song begins with is oddly familiar. I know I've heard it from somewhere, but I can't put a finger on where it really came from; it makes me wonder if you may have taken melodies from other songs as well. I can't say for sure, however.
The progression of the song is very strange. A melody will be playing, and then suddenly it reverts back to how the song began. It's almost as if a piece of a song was chopped and played over again... very suspicious. I know that the song is supposed to mess with one's mentality, but still. I think this could have turned out way better than it has.