Human Centipede movie?

The trailer made me cringe and just made me want to watch it. It was
sick and rather frightning what human beings are capeable of thinking.

Now, I know a single man wouldnt be able to pull this off.
And the movie is sick, and poorly done, but it would have been better
if it went more into the life/mind of the demented surgeon (instead of
the two girls), his renowned work of seperaring siamese twins; what
made him crazy and want a human centipede as a pet or even think and
plan it out. Did anyone he knew or worked with notice his crazy side
and worry about it? He made it pretty obvious to the detectives and
girls in the movie there was something up with him. Arent lunatics
usually good a blending in or hiding the fact they are lunatics?.
Maybe give him a brainwashed wife or daughter/son that assisted him.
Or some assistant. Have the Japanese guy in the front at least know a
little English or German to communicate with the lunatic better, or
the lunatic know Japanese abit. Be more medically accurate. Maybe even
know the poor victims as patients/friends/family instead of just
strangers he plucked off until he found matches. Better gunshot wound
to the head.......

Doesnt have to be a perfect movie, just a more beliveable one.

The movie just reminded me to not drink anything you didn't pour
yourself. Or wander into a forest in Europe.