The cover of Batman 40 (April/May 1947) is the best thing about the Joker story in this issue, by Finger, Sprang and Gene McDonald.
Gotham City is apparently obsessed with a really lame television show, which consists of people breaking superstitions. The Joker is watching as well, and decides to make the panelists on the show victims of the superstitions they broke.
And so that’s what happens. If anything, this suffers not from the actual plot or art, but by the overuse of the Joker, and the fact that his themes are increasingly random, and have little to do with the character himself.
You almost feel sorry for the villain when Robin throws a horseshoe right at his head.