Wow, that looks awesome. It hits the classic "hot girls break down find mysterious house with killer" note. It hits the "cultural hot-button (Mengele)" note. It hits the "damn this is disturbing and un-nerving on the deepest psycological levels I can imagine" note. I mean, basically swallowing the other person's poo as it moves through the system? Or simply being so totally dependent on another and the fears that accompany that? The English teacher in me thinks that if this is any good, you could really go to town analyzing it. Get it? ANALyzing? God, I kill myself.
Seriously though, looks great.