A freak lightning storm causes giant advertising mascots to come to life, Groundskeeper Willie dies and swears revenge on the kids in their dreams, and Homer accidentally finds himself trapped in another dimension.


(as Bedlam Bob Anderson), (as Decadent David Mirkin)


(created by) (as Matt 'Funk Lord of USA' Groening), (developed by) (as James Hell Brooks) | 6 more credits »

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Episode cast overview:
Homer Simpson / Squeaky-Voiced Teen / Kodos / Santa's Little Helper / Groundskeeper Willie / Grampa Simpson / Krusty the Clown (voice) (as Dan CastellanetaarghaGAHEGGA {Smash} Gurgle Mr. Hyde)
Marge Simpson / Patty Bouvier / Selma Bouvier (voice) (as Jooooolie Kavner)
Bart Simpson / Nelson Muntz (voice) (as Nancy Heart-Fright)
Lisa Simpson (voice) (as Scudley Smith)
Man at Duff Beer Sign / Crazy Old Man / Chief Wiggum / Lou / Kirk Van Houten / TV Voice #1 / Professor Frink (voice) (as Angst Azaria)
Radio Announcer / Kent Brockman / Otto / Ned Flanders / Advertising Agent / Kang / Principal Skinner / TV Voice #2 / Reverend Lovejoy / Dr. Hibbert (voice)
Himself (voice)
Edna Krabappel (voice)
Martin Prince (voice) (as Russi Big Tombs Taylor)


A freak lightning storm causes giant advertising mascots to come to life, Groundskeeper Willie dies and swears revenge on the kids in their dreams, and Homer accidentally finds himself trapped in another dimension.

Plot Summary | Add Synopsis


Animation | Comedy

Parents Guide:





Release Date:

29 October 1995 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


When Homer is in the Third Dimension, we see the equation 1782^12 + 1841^12 = 1922^12. This is an allusion to Fermat's Last Theorem, which holds that if n is greater than 2, there are no non-zero integers x, y, and z such that x^n + y^n = z^n. The equation we see does not work, as 1782^12 + 1841^12 = 2,541,210,258,614,589,176,288,669,958,142,428,526,657, and 1922^12 = 2,541,210,259,314,801,410,819,278,649,643,651,567,616. See more »


Principal Skinner: Children, I couldn't help monitoring your conversation. There's no mystery about Willy. Why, he simply disappeared. Now, let's have no more curiosity about this bizarre cover-up.
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Crazy Credits

This is the first Treehouse of Horror episode to not have a cemetery motive or tombstones with humorous names in its opening. This is also the first Treehouse of Horror episode to have a short opening. See more »


References Poltergeist (1982) See more »


Listen to the Mockingbird
Music by Richard Milburn
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Frequently Asked Questions

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User Reviews

Unprocessed fishsticks!
27 January 2006 | by (The Penumbra) – See all my reviews

Not wishing to suffer a night of boring stories and horrid family activities with Patty and Selma, Homer scours the house for a hiding place and has to settle for a spot behind the bookcase after Bart, Lisa and the pets take the better ones.

But behind the bookcase is the doorway to another dimension, a place where shapes are extended beyond the 2 dimensions of the Simpsons universe, along the hypothetical 'Z-Axis'. This leads to Homer noticing things he has never been able to see before, such as his big belly and butt.

The place Homer is taken to is a massive grid-like universe, not unlike the movie Tron, where the stars shine brightly above and odd shapes and idiosyncrasies are in abundance. Among the many curious things Homer encounters is the library from Myst, which I thought was a cool reference. Also, the music as Homer wanders around in this mysterious place is very nice, it's a shame it never made it to any of the Simpsons CDs.

In the end, though Homer's own ignorance of quantum physics (he never read the book by that wheelchair guy) and despite Bart's rescue attempts, the universe collapses on itself and Homer falls into oblivion, or some place much, much worse...

...the real world. Well, at least he still has his erotic cakes.

18 of 22 people found this review helpful.  Was this review helpful to you?

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