Treehouse of Horror III

Homer's silhouette appears next to Alfred Hitchcock's iconic silhouette. He emerges and warns viewers that the following episode could scare certain viewers especially religious types as he believes. He requests for the television to be turned off before daring viewers imitating a chicken. The TV screen eventually switches off, however, Homer and Marge could still be heard if not seen. The episode then pans to a cemetery and eventually to the Simpsons house, with the family in their couch gag as skeletons.

The Simpsons are having a Halloween party, and they tell scary stories. The Halloween costumes include Homer as Julius Caesar, Marge as an ancient Egyptian, most likely Cleopatra, Bart as Alex from A Clockwork Orange, Lisa as the Statue of Liberty, Milhouse as Radioactive Man, Martin as Calliope, Nelson as a pirate, Janie as a princess, Wendell as an astronaut and Lewis as Frankenstein's Monster.

After forgetting to buy him a gift for his birthday, Homer buys Bart a talking Krusty doll at `House of Evil' (your one-stop evil shop). Upon receiving the doll, Bart excitedly says "Great Caesar's ghost!", a catchphrase said by Perry White of the Superman comic book series. Although the doll's nice to Bart, it repeatedly tries to kill Homer (which no one believes).

Homer captures the evil Krusty doll in a bag of dirty socks he locks in a suitcase. He disposes of the suitcase in a "Bottomless Pit" and returns home, not realizing the doll managed to follow him. As the doll attempts to strangle Homer, Marge calls KrustyCo for help; a repairman arrives and discovers the doll's accidentally switched from "Good" to "Evil". He flips the switch back to "Good", and Homer uses the doll as a servant. The doll laments to his "girlfriend" Malibu Stacy, he shares Lisa's dollhouse with, "Today, Homer made me give him a sponge bath!" Krusty gives Stacy a smooch on the cheek, causing her head to fall off. He picks up the head and puts it back on, gazing at her lovingly.

In a black and white segment, Marge joins Mr. Burns and Smithers on an expedition to "Ape Island" to find the legendary "King Homer". Mr. Burns captures the giant ape and displays him to the press on Broadway. The photographers' flashes enrage King Homer, who breaks free from his restraints. He abducts Marge and wreaks havoc, eating many people in the process. He attempts to climb a tall building, but is unable to get even one story above the ground. King Homer collapses in exhaustion, and Marge helpfully suggests he eat more vegetables and less people. In the end, King Homer and Marge marry the same day Dick Cavett is born (November 19, 1936). The story ends with the wedding, and King Homer eating Marge's father Clancy Bouvier, although Marge is surprisingly not upset.

While in the school's library searching for material for a book report, Bart finds a book of magic in the occult section. To make Lisa happy, he tries to resurrect Snowball I for her, but accidentally reanimates hundreds of human corpses instead. The zombies terrorize Springfield until Homer wields a shotgun to help Bart and Lisa find the book to reverse the spell in the Springfield Elementary library. Bart successfully finds the book and casts the spell accidentally turning Lisa into a snail, shocking him. Lisa doesn't notice her transformation and asks Bart what. He replies, "I just haven't noticed what a beautiful, young woman you're becoming," flattering her. Bart finds the correct spell and casts it upon the world, returning the dead zombies to their graves. Those who became zombies by infection drop dead in the streets and it turns Lisa, unaware of her change, back to normal.

At home, Marge remarks that it's a relief she and the family weren't turned into mindless zombies. However, in a twist ending, The Simpsons begin speaking in a zombie-like monotone while watching a man fall down on TV.