Batman enters the toughest phase in his battle against evil when the master criminal The Joker appears. The bosses hire The Joker to kill Batman to avenge the illegal assets he exposed. Supporting The Joker are all the criminals in Gotham City, whose living space is being narrowed by the trio of Batman - Lieutenant Gordon - Lawyer Harvey Dent. A series of attacks occurred, leaving Batman confused. Officials were murdered, people did not dare go out at night for fear of being killed, and all exits into Gotham City were blocked. It was all arranged by The Joker.