Here's the cast of characters:
Valery Spiridonov, 31: Russian tech geek who runs an educational software company from his home east of Moscow. Because he has Werdnig-Hoffmann disease, a genetic disorder that wastes muscles and motor neurons, he is physically capable of little beyond feeding himself, steering his wheelchair with a joystick, and typing. The disease is usually fatal, and doctors expected him to be dead by now.
Xiaoping Ren, 55: Chinese surgeon who, when he lived in the United States, was on the team that performed the first successful hand transplant. He practiced for it by switching pigs' forelegs, and he keeps in his office a bronzed pig ear that the transplant team sent him as a trophy.
Sergio Canavero, 51: Shaven-headed, flamboyant Italian neurosurgeon who compares himself to Dr. Frankenstein, mentions Nazi doctor Josef Mengele and has written not only dozens of respected scientific papers but also a guide to seducing women. In 2013, he announced he wanted to try to transplant a human head.
You see where this is going, right? Canavero and Ren want to perform the world's first head transplant, and Spiridonov has volunteered.