Deadman Wonderland

Ganta Igarashi's class is preparing to visit Deadman Wonderland, a privately run prison that doubles as a grotesque amusement park, when a mysterious figure in red massacres everyone except him. Instead of being treated as the sole survivor, Ganta is framed for the killings, condemned to death, and sent to the very prison his class was meant to tour.

Inside, inmates are turned into entertainment and survival depends on obeying cruel rules enforced by a lethal collar. Ganta soon discovers that something unnatural has changed inside his own body as well. To stay alive and clear his name, he must endure the prison's deadly spectacles while searching for the Red Man who destroyed his life and uncovering what Deadman Wonderland is truly hiding.