"Treehouse of Horror II" is the seventh episode of the third season of the American animated television series The Simpsons. It first aired on the Fox network in the United States on October 31, 1991. It is the second annual Treehouse of Horror episode, consisting of three self-contained segments, told as dreams of Lisa, Bart and Homer and is the only Treehouse of Horror episode to date where each segment name is not stated inside the episode. In the first segment, which was inspired by W. W. Jacobs's short story The Monkey's Paw and The Twilight Zone episode "A Small Talent for War", Homer buys a Monkey's Paw that has the power to grant wishes, although all the wishes backfire. In the second part, which parodies the Twilight Zone episode "It's a Good Life", Bart is omnipotent, and turns Homer into a jack-in-the-box, resulting in the two spending more time together. In the final segment, Mr. Burns attempts to use Homer's brain to power a giant robotic laborer.

The third season of the American animated television series The Simpsons originally aired on the Fox network between September 19, 1991, and August 27, 1992. The showrunners for the third production season were Al Jean and Mike Reiss who executive produced 22 episodes for the season, while two other episodes were produced by James L. Brooks, Matt Groening, and Sam Simon, with it being produced by Gracie Films and 20th Century Fox Television. An additional episode, "Brother, Can You Spare Two Dimes?", aired on August 27, 1992, after the official end of the third season and is included on the Season 3 DVD set. Season three won six Primetime Emmy Awards for "Outstanding Voice-Over Performance" and also received a nomination for "Outstanding Animated Program" for the episode "Radio Bart". The complete season was released on DVD in Region 1 on August 26, 2003, Region 2 on October 6, 2003, and in Region 4 on October 22, 2003.