Gotham City has become a place of nightmares and madness. At its poisoned heart lies Arkham Asylum. For decades the lunacy has been kept under control by Batman and contained within the walls of Arkham. But with Batman gone, what happens once the walls come tumbling down? In this one-shot, will the Asylum's administrator Dr. Jeremiah Arkham fall prey to the madness that has plagued so many of his inmates? Or will he seize this opportunity to usher in a new era for Gotham's most haunted institution?