In a dystopian world where few are able to feel pain, more and more people are developing organs with previously unknown abilities. Performance star Saul Tenser uses his mutations for art: In acclaimed avant-garde shows, he has his partner Caprice operate on his newly grown body parts in front of a live audience. His spectacular performances soon arouse the suspicion of the state organ registration authority and a mysterious underground organization also meticulously follows his every move. But then Saul receives an offer for the most shocking performance of his life.