From the pantheons of DC's Dark Multiverse comes a version of Batman unlike any other! After being infected by the Joker's evil toxins, the Caped Crusader transforms into the "Batman Who Laughs," a combination of heroic justice and the Joker's manic insanity. After his ...From the pantheons of DC's Dark Multiverse comes a version of Batman unlike any other! After being infected by the Joker's evil toxins, the Caped Crusader transforms into the "Batman Who Laughs," a combination of heroic justice and the Joker's manic insanity. After his transformation, the Laughing Batman proceeds to take out all the members of the Batman family and the entire Justice League! The maniacal villain opens the Dark Multiverse to unleash his ultimate creation, the "Robin Minions."