There is a very strong contrast to Tom Six's first installment of this film. In fact, the approach is rather interesting. In the Human Centipede II, we find that the happenings in the first movie where just that , a movie. Which means, it never happened. Oh but wait, we then meet Martin; a short, pin-head, pop-eyed, down right creepy type of guy. Oh, and did I mention he was mentally challenged? Don't ask me how I know; just say the title of the film.
Yes, it gets better. Martin is a parking garage attendant, at a garage that seems to offer very opportune situations for abducting people. Oh, and he's a copy-cat murderer. And yes, you guessed it; he is using the original Human Centipede film as a reference for attaching not 4, but 12 people together ASS TO MOUTH. A human centipede. Or maybe it's just people attached ass to mouth?
Either way, that's as deep as the plot goes. There are no deep profound meanings, no plot twist, no climatic endings. Six seems to be aiming to please fans of gore, with anal incisions, severed nerves, mouths stapled to asses, and consequently- mouths filled with shit.
In all, the film has been shot in a high contrast stylistic black and white; which was most likely done to take the edge off of the excessive gore. Either way, he has in some ways achieved a very masterful piece of art with the shooting technique. The aforementioned, accompanied by Laurence R. Harvey's creepy and convincing delivery of Martin; makes this film is without doubt one that will stick with you for better or for worse.