A deranged German surgeon kidnaps three tourists and surgically joins them mouth-to-anus to create a "human centipede" with a single shared digestive system. 3. Viewer Advisory (Parents' Guide)

The performances in The Human Centipede LK21 are a crucial element in understanding the film's polarizing effect. Dieter Laser delivers a chilling and unhinged performance as Heiter, imbuing the character with a sense of bemused curiosity and sociopathic detachment.

This film contains extreme graphic violence, explicit gore, and disturbing body‑modification themes. Viewer discretion is strongly advised.