Simpsons Season 3, Episode 7: Treehouse of Horror II

When Homer, Bart, and Lisa eat a ton of candy, the three begin having various nightmares: Warning Spoiler Lisa's nightmare: The Simpsons visit Morocco and find a monkey's paw that makes all their wishes come true with dire consequences. Bart's nightmare: The town of Springfield must think happy thoughts or suffer the powers of Bart's twisted imagination. Homer's nightmare: Mr. Burns kills Homer so he can transplant his brain into a robot's to create a super-efficient worker.