I've only read about three pages into this thread now (I want to read the rest, but it's getting quite late where I am), but I'm gonna post now so that this gets tagged as something I'm watching.
This is brilliant stuff. Love the amount of detail that's going into this. Moods, psych profiles, noise levels, spatters and cuts and all the lovely little bits that appeal to the rampant psycho within us... The ability to stalk the streets as a homeless fellow, so grubby no one can identify him, and living off the sweet and juicy flesh of your victims; or being the nice, charming guy who's a great listener and going out on dates only to find that once he's charmed you into his home, he happens to like dressing up as grandma and putting heads in the fridge next to the butter.
I also think it would be great fun to nail the left hands of people to a wall in your house so that you can confuse the hell out of cops like in South Park.
The massive level of intricacy that's already evident in the video lends itself to an amazing range of gameplay scenarios and styles. I'm very much looking forward to seeing where this ends up.
Shame about the sexual deviance though. It is strange that we seem perfectly fine with cutting someone's limbs off while they're still alive, cauterizing the wounds, and then pissing on their face until they drown; but ejaculating onto the TV set is absolutely a no-no.
Ah well, can't complain. This thing is already plenty sick enough, and it all looks positively delightful.