The Dark Knight of Gotham City begins his war on crime with his first major enemy being Jack Napier, a criminal who becomes the clownishly homicidal Joker.
While Batman deals with a deformed man calling himself the Penguin wreaking havoc across Gotham with the help of a cruel businessman, a female employee of the latter becomes the Catwoman with her own vendetta.
Batman must battle former district attorney Harvey Dent, who is now Two-Face and Edward Nygma, The Riddler with help from an amorous psychologist and a young circus acrobat who becomes his sidekick, Robin.
A shy woman, endowed with the speed, reflexes, and senses of a cat, walks a thin line between criminal and hero, even as a detective doggedly pursues her, fascinated by both of her personas.