In the tollbooth of a parking garage in rainy London, Martin Lomax – a short, obese, asthmatic man in his 40s – is watching The Human Centipede (First Sequence) on his laptop, a film he is obsessed with, and he keeps a centipede in a glass terrarium and maintains a detailed scrapbook of the film. Martin lives with his suicidal mother who constantly yells at him and blames him for having his father put in prison for both physically and sexually abusing Martin when he was a boy. Dr. Sebring, Martin's doctor, also touches him inappropriately and prescribes heavy medication.
Martin acquires a dingy, dimly-lit warehouse after killing the man who is leasing it and begins abducting people from the car park to use as for his own human centipede by knocking them unconscious with a crowbar, then binding their hands and feet with tape and driving them to the warehouse. His victims include an aggressive young man and his girlfriend; a man who complains about the automatic teller machines having no cash; two drunk party girls who catch Martin masturbating with sand paper; a neighbour who has threatened Martin and his mother with violence when she complains about his loud music; a rich man and his pregnant wife; a cab driver and prostitute who happens to be servicing Dr. Sebring in Martin's car park; and finally, Ashlynn Yennie, the actress who played Jenny in the first film (now playing herself, having been lured by Martin under the pretense of a film audition). Martin kills the cabbie and shoots Dr. Sebring in the genitals and head, and also kills his mother.
With twelve victims, Martin begins assembling his "centipede". Martin severs the tendons in each person's knees to prevent them from fleeing and uses a hammer to knock out their teeth. He slices open the buttocks of the victims using filthy kitchen utensils, and then uses a staple gun and duct tape to attach each person's face to the next person's buttocks. During the assembly process, the pregnant woman is presumed dead while another victim bleeds to death; Martin places both of them in the corner of the room under a sheet of tarp.
After performing the crude procedure, Martin, now clad only in his underwear and a doctor’s coat, begins experimenting with his "human centipede". Martin force-feeds Ashlynn soup using a funnel and tubing after she refuses to eat from a bowl. Worried that her screams for help might be heard, Martin tears her tongue out with a pair of pliers. Martin then injects each victim with a syringe of laxative, forcing each individual in the chain to explosively evacuate their bowels into the mouth of the person behind them. He laughs happily while mocking and taunting them, but the smell eventually causes Martin to vomit.
Martin then wraps his penis in barbed wire and ***** the woman at the rear of the centipede. As he finishes, the pregnant woman wakes and runs outside screaming, apparently in labour and bleeding from her vagina. She leaps into a victim’s car outside and births her child into the car's foot well as Martin tries to get in. As the engine starts, she throws the vehicle into reverse and stomps on the accelerator, crushing the baby's skull under the pedal. Meanwhile, the neighbour rips his face from the person in front of him, separating the "centipede" into two halves. Martin returns and begins shooting all the victims. He runs out of ammunition, then uses a knife to slit the throats of the remaining victims. As Martin advances on Ashlynn he appears to give pause, drops the knife and kneels in front of her. She then punches him in the genitals, shoves the funnel into Martin's rectum, and drops his pet centipede into it. In agony, Martin stabs Ashlynn in the face and staggers out, screaming.
The scene cuts back to the toll booth, as Martin, looking the same as before the creation of his "centipede", is watching the credits of First Sequence on his laptop, leaving the audience to decide if the events really happened or were only in Martin's head.
Watched the first one already. Friend was explaining how God awful it was. Mixture of curiosity and being able to say that I've seen it and I was in an XBL party with friends the whole time describing what was going down.
Never said that SOS is awesome and always will be. I just don't want to ruin the lounge. I can see why people were pissed about last night and I don't want that to happen again. We have a good thing going here, let's not mess it up.