Set a few months after the first film, and Batman is trying to balance his crime-fighting mission with his personal/business life as Bruce Wayne, where he makes a new friend with the city's newly-appointed district attorney, Harvey Dent. A new villain, a violent and untraceable serial killer, has been kidnapping people from the streets and lobotomizing them into mindless slaves, with the killer referring to himself as "Professor Pyg". Batman has a new sidekick in the form of Jim Gordon's daughter, Barbara Gordon.
