Pe jumătate Batman. Pe jumătate Joker. Tot ceea ce îl face pe Batman un erou, combinat cu tot ceea ce îl face pe Joker un ucigaș, transformă Batman Who Laughs în cel mai mortal geniu criminal din multiversul întunecat. Acum s-a îndreptat spre orașul lui Bruce Wayne și nu vine singur. Half Batman. Half Joker. Combining everything that makes the Caped Crusader a hero and the Clown Prince a killer, the Batman Who Laughs is the Dark Multiverse's deadliest criminal mastermind. Now he's come to Gotham to turn Bruce Wayne's home into an incubator for evil. And he hasn't come alone. Emerging from another of the Dark Multiverse's myriad realities comes the Grim Knight. This vicious vigilante will use any weapon at his disposal to ensure those he has marked for death stay down. A war like no other - a war of the Batmen - has begun. As Batman's closest friends, deadliest enemies, and doppelgangers from across the Multiverse get caught in the crossfire, only one question remains: Who will have the last laugh? Colectează întreaga mini-serie de șapte numere și numărul special one-shot The Batman Who Laughs: The Grim Knight.