Framed for the brutal murders of his classmates by the mysterious Red Man, middle school student Ganta Igarashi finds himself sentenced to death and sent to the bizarre and fatal theme park/prison that has risen from the ruins of the Great Tokyo Earthquake--a hell on earth known as "Deadman Wonderland."

Ganta enters the Carnival Corpse, a battle between two Branch of Sin users. Ganta's next opponent is a timid girl; can he even take her on? Meanwhile, deep in the bowels of the prison, the warden stands face to face with the Red Man. Who really murdered Ganta's friends?