Ganta Igarashi's ordinary life is shattered when his entire class is brutally murdered, and he's wrongly accused and sentenced to Deadman Wonderland, a bizarre prison theme park.
Instead of a simple prison sentence, Ganta is thrust into a deadly game for survival, where inmates are forced to participate in dangerous and often lethal activities to earn points that delay their execution.
He must navigate the treacherous prison environment, filled with dangerous convicts and those who possess strange abilities, all while trying to prove his innocence and uncover the identity of the mysterious "Red Man" responsible for the massacre.
His every move is a gamble, as he struggles to survive in a place where trust is a luxury and death is always a looming threat.