THE KILLING JOKE (1988)
You ask anyone what their favorite Batman/Joker story is and I don’t know what they’d say, but it should be Alan Moore and Brian Bolland’s The Killing Joke.
You can’t really talk about Batman and his 75th Anniversary without talking about his greatest foe, The Joker. Like Batman, Joker came around at the same time and hasn’t really changed since then. The Joker was responsible for many tragedies in Batman’s life and yet he never forced Batman to brake his one rule. They’re perfect antithesis to each other, yet one could argue Batman is just as insane as The Joker.
The Killing Joke is the story about The Joker’s experiment to turn a sane man, Jim Gordon, insane through various horrible actions. Of course Batman is there to save the day and bring The Joker in, but not before listing to a final joke. And not before saving Barbara Gordon from becoming a paraplegic. A plot point that would be canon for a long time.
This is definitely one of the greatest Batman stories ever told. It’s both humorous and disturbing and it’s a classic.