Treehouse of Horror XXXVII

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General
Season 38 Episode
← 812 "Treehouse of Horror Presents: The Revengening"
813
"Treehouse of Horror XXXVII"
"Testing 1-2-3" 814 →
← XXXVI "Treehouse of Horror XXXVI"
XXXVII
"Treehouse of Horror XXXVII"
"Treehouse of Horror XXXVIII" XXXVIII →
Treehouse of Horror Episode


This THOH is considered non-canon and the events featured do not relate to the series and therefore may not have actually happened/existed there.

The reason behind this decision is: The episode is part of the Treehouse of Horror series.

If you dispute this, please bring it up on the episode's talk page.


"Treehouse of Horror XXXVII"

Episode Information
Episode number: 813
Season number: S38 E4
Production code: 37ABF14
Original airdate: October 25, 2026
Guest star(s): Tiffany Haddish as Tiffany
Jeff Probst as himself
Showrunner: Matt Selman
Co-showrunner: Tim Long
Written by: Joel H. Cohen
Jessica Conrad
Tim Long
Directed by: David Silverman

"Treehouse of Horror XXXVII" is the fourth episode of season 38 of The Simpsons and the eight hundred thirteenth episode overall. It originally aired on October 25, 2026. The episode was written by Joel H. Cohen, Jessica Conrad, Tim Long and directed by David Silverman. It guest stars Tiffany Haddish as Tiffany and Jeff Probst as himself.

Synopsis

In "Bride's Shed Revisited", Homer goes to the shed and comes out as a different husband for Marge. Suddenly, she finds herself cycling through multiple different husbands. In "Dog Boy Afternoon", Homer accidentally kills Bart and Santa's Little Helper and buries them, and they come back with their bodies switched. In "Vehicular Dadslaughter", Homer mysteriously vanished years ago, and the teenage versions of Bart and Lisa find out that evil witch versions of Patty and Selma have trapped him in endless murderous Driver's Ed films.

Plot

Opening sequence

Claymation versions of the people of Springfield sing "Simpsons Halloween" together in the Springfield Town Square.

Bride's Shed Revisited

A young Homer and Marge are celebrating their first wedding anniversary. Marge asks Homer to build the shed that he promised to build a year ago. Homer comes up with excuses, so Marge builds it instead. Homer screws in the final screw to claim that he helped, and Marge tells him to put the screwdriver in the shed. However, when Homer enters the shed, he comes out as Lenny Leonard instead. Marge is shocked by this and becomes even more shocked when she goes back into the house to find that it looks completely different and that there are pictures of her and Lenny together. When Marge tries to fight Lenny off with a chair, he takes the chair to the shed. When he emerges, he's Chief Wiggum instead. Wiggum asks Marge for a foot rub, so Marge asks him to get the toe creams from the shed. Eventually, Marge ends up married to Dr. Hibbert and has Tiffany as a best friend. She tells Tiffany about the shed, and Tiffany tells Marge that she has hit the romance lottery because she can just replace her husband at any point.

Marge goes through several more husbands, including Kang and Kodos, Principal Skinner, Moe, and Comic Book Guy, until she gets to Jeff Probst. Marge decides to try having him as a husband, and they sleep together. The next day, while out on a walk with her new husband, Marge notices Homer with Lunchlady Dora. She talks to Homer and tells him that she misses him, but he doesn't recognize her. That night, Marge accidentally calls Jeff by Homer's name. The following morning, feeling guilty about this, she asks Jeff to get into the shed again. Marge decides to take matters into her own hands and gets Homer at gunpoint to go with her to the shed. Marge and Homer get into the shed together and end up married to each other again. As Homer and Marge make out, their children, Rod and Todd, enter the room and see them "sinning". The two kids grab shotguns and approach them.

Dog Boy Afternoon

Wanting the family to eat healthier, Marge makes "beige surprise" for everyone to eat. Not wanting to eat it, Homer and Bart take Santa's Little Helper out, telling Marge they're taking him to the dog park. Instead, they go to Luigi's, where they eat spaghetti and meatballs. Santa's Little Helper wants meatballs, too, but Homer teases him before telling him to fetch a meatball. Santa's Little Helper gets hit by a car and dies. Homer and Bart take him to the Pet Graveyard to bury him. While digging the grave, Homer accidentally hits Bart with the shovel and kills him, too. Not wanting to be caught, Homer buries both of them in the same grave. That night, a storm passes over Springfield. Lightning hits the grave, causing both Bart and Santa's Little Helper to rise from it.

The next morning, Homer tries to think of an excuse to tell Marge for why Bart and Santa's Little Helper are missing. However, he finds them both back at home alive, although they have switched bodies. On the way to school, Bart in Santa's Little Helper's body tries to tell Lisa about their switch, but she can't understand him. Meanwhile, Homer is at home trying to figure out how Bart and Santa's Little Helper came back. After the school day ends, Santa's Little Helper and Lisa return home. Bart tries again to tell Lisa what happened and uses an Ouija board to do so. Lisa believes Bart and tries to tell Marge, who doesn't believe her. Marge leaves to go to the laundromat while Homer tries to convince Lisa that she's wrong. Homer and Lisa then have an argument over whether Bart should be called BartDog or DogBart. When Homer notices Santa's Little Helper attacking his vodka hat, he attacks him, strangling Bart's body. Bart attacks Homer and bites him. Homer throws Bart into a dog carrier and tells him that he's taking him to the kennel to be put down. Homer drives to Who Put the Dogs Down? while Lisa and Santa's Little Helper chase after him. Homer arrives at the kennel first, but Lisa and Santa's Little Helper get help from other dogs. Lisa shoots a meatball into the car using Bart's slingshot, and all the dogs attack Homer, killing him and ripping him apart. Bart, Lisa, and Santa's Little Helper bury Homer in the pet cemetery.

A lightning storm takes place that night again and strikes the grave Homer was buried in, next to Snowball I. Homer and the cat swap bodies and return home, where Bart chases Homer around the house. Marge doesn't stop them because Homer is exercising.

Vehicular Dadslaughter

In the future, Homer has been missing for seven years, and Bart and Lisa are now teenagers. Marge has been depressed since Homer went missing, and Bart and Lisa are attending driver's ed classes at Springfield High School. During class, Mr. Largo puts on You Can't Spell Carnage Without Car for the students to watch. Lisa realizes that the character Gladys looks like Homer, although Bart doesn't see the resemblance. She and Bart then realize that Rocco also looks and acts like Homer and decide to find out why Homer is in their driver's ed video. The video was made by the Springfield Department of Motor Vehicles, so they go there for answers. Bart and Lisa sneak in, where they are confronted by Patty and Selma. The twins offer to give them their driver's licenses early, which Bart jumps at the chance to get. However, Lisa realizes something is up after seeing Homer's driver's license on the wall. Lisa tries to stop Bart from having his photo taken, but the twins take a photo of Bart and Lisa, transporting them into the driver's ed films.

Bart and Lisa end up in the same car as Homer and explain to him how he's trapped in the films, getting killed over and over due to his terrible driving. Lisa reads the handbook and finds that they have to follow all the rules and regulations to the letter to escape. Patty and Selma try to make Homer break the rules, so Lisa tells him what he needs to do. After a narrow miss while following the rules, Patty and Selma make the world freeze over. Lisa explains to Homer what to do when the car is skidding, and they successfully carry on driving within the traffic laws. As they drive around the edge of a mountain, a biker gang of Pattys and Selmas closes in on them. Lisa realizes that while Homer has to obey the rules, she and Bart don't, so the siblings attack their aunts, knocking them off their bikes and down the mountain. Finally, they approach the tunnel to Springfield. However, Patty and Selma burn Homer's hand before he can signal, then cut off his arms with chainsaws. Lisa grabs the wheel to keep them on the road, but the tunnel turns out to be Patty and Selma, who close it and stop them from entering. They tell the Simpsons that Homer must parallel park to pass the final test. Lisa decides to do it for him, but she is turned into a hula dancer dashboard figure. Bart takes the wheel and slides into the parking spot with ease. Patty and Selma are then swept up in a tornado and turned into driver's licenses.

Homer, Bart, and Lisa return to the real world, where Homer and Marge are reunited. Lisa asks Bart how he learned to parallel park, and Bart is surprised because he didn't realize what he did was parallel parking. Meanwhile, Patty and Selma are transported to Damnation Most Vile, which is a never-ending queue.

Production

The producers wanted to make "Treehouse of Horror" episodes genuinely scary. The episode has a stop-motion sequence by Stoopid Buddy Stoodios that is a parody of The Nightmare Before Christmas. One segment is a mashup between the film Freaky Friday and the Stephen King book Pet Sematary where Bart and Santa's Little Helper swap bodies. The episode also features an argument whether Bart should be referred to as "Bart Dog" or "Dog Bart", which was based on a real argument between writers Tim Long and Jessica Conrad.[1] One segment is inspired by The Husbands by Holly Gramazio in which Homer goes into the shed and comes out as a different husband for Marge.[2]

The original airing of the episode featured a sign gag outside the Department of Motor Vehicles. The sign featured a website URL that was supposedly for the DMV. The website was registered on October 8, 2026 by an unknown party.[3] Shortly after the episode aired, the website and filled it with adult content of Simpsons characters. In the online version of the episode, the sign was initially edited to remove the text before it was removed altogether.

The promo picture of the Homer Simpson Memorial Highway went unused in the final episode.

Gallery

References


Wikisimpsons has 37 images related to "Treehouse of Horror XXXVII".
Season 38 Episodes
The Children's Book Job • Diary of a Chimpy Kid • Treehouse of Horror Presents: The Revengening • Treehouse of Horror XXXVII • Testing 1-2-3 • The Kosmic Kruiser • Dream Scenari-Moe • Curb Your Expectations • Jersey Score • Don't Marge with Texas • Bog • The Offendables • Lock, Stock and One Stupid Narrator • Billionaire on the Bayou • Lenny Goes Squiggy
Production season 37ABF Episodes
The Day of the Jack-Up • Aunt Misbehavin' • Parahormonal Activity • Guess Who's Coming to Skinner • Homer? A Cracker Bro? • ¡The Fall Guy-Yi-Yi! • Seperance • Irrational Treasure • Diary of a Chimpy Kid • The Kosmic Kruiser • Dream Scenari-Moe • Curb Your Expectations • Jersey Score • Treehouse of Horror XXXVII • MultipLISAty