The Human Centipede 2: Full Sequence is the sequel to The Human Centipede: First Sequence. The Human Centipede 2 is a dark tale about a psychotic man named Martin who watches the first Human Centipede movie and becomes obsessed with creating his own Human Centipede. In his twisted mind the first man did not go far enough by only placing 3 people in his human centipede. Martin wants to create a bigger centipede with 12 people instead of the three that the first man did. Martin creates a binder with the images he believes will be helpful to him in his quest.
Martin's home life is exposed to us while he is in his kitchen. He lives with his mother and was sexually abused by his father when he was a child. Martin was sexually abused again by the psychiatrist that was supposed to help him to get over the abuse. His mother is verbally abusive toward him and you see the human side to Martin while she is yelling at him. His mother blames him for his father sexually abusing him and for his father serving prison time for the crime. She has killed all that was human about him and has created a monster. His mother eventually stumbles upon his binder and then he violently bludgeoned her to death.
Martin is random about the selection of his victims except for one. He manages to trick the actress from the first movie into coming in to audition for him. Once she is there she is captured and collected as his ultimate prize. He is very excited that she will become the one in front of the centipede.
Martin collects all 12 of his victims and begins to construct his human centipede. He cuts the tendon in each of their knees to prevent them from escaping. His first attempts at surgically altering his subjects were crude and he accidentally kills a few while trying to assemble them into one large centipede. He decides to use a staple gun and duct tape instead. It does work and he does horrible and sadistic things to them while they are stuck together. The movie then follows the 12 victim's journey into madness and their will to survive their ordeal.
This movie was banned in both the United Kingdom and in Australia until recently due to its horrific content. The movie had to be edited multiple times from its original form before those two countries would allow it to be released to the public.