"You had a bad day and everything changed." In the pages of the iconic story Batman: The Killing Joke, Batman's ultimate foe, The Joker, was changed forever, given new, horrifying definition by the graphic novel that acted as the template for all the character's stories moving forward. Now, 35 years later, some of comics' greatest creators have come together to give that same stunning reexamination and evolution to more of Batman's iconic rogues gallery—the Riddler, Two-Face, the Penguin, Mr. Freeze, Catwoman, Bane, Clayface, and Ra's al Ghul—in the pages of Batman - One Bad Day.