Living with his mother in a bleak housing project, Martin is a mentally disturbed loner who works the night shift as a security guard in a grim underground parking garage. Seeking an escape from his miserable existence, he becomes dangerously obsessed with the cult horror film "The Human Centipede" (2009). Fixated on the meticulous surgical skills of the sinister Dr. Heiter, Martin uses the doctor's knowledge of the human gastrointestinal system as inspiration to attempt an unspeakable and horrific experiment of his own.
