The Joker tricks an amnesiac Creeper into partnering up in crime. Of course, the jokes on the Joker when the Creeper comes to his senses.
While I like this story, I miss Steve Ditko’s Creeper of the 60s, who seemed as crazy as the Joker. But by the 70’s, the character seemed mostly to be going through the motions. For me, the battle of the Jokers in issue #9 was a much better match-up.