Simpsons Treehouse Of Horror 2021. For the continuing series of halloween specials, see treehouse of horror series. Animation oct 10, 2021 21 min.

The simpsons have graced our screens once again with a brand new, terrifying installment of the iconic “treehouse of horror” halloween special. The simpsons is set to return this fall for its 33rd season, which means in october it will be delivering audiences its 32nd installment of the beloved treehouse of horror format,.