The Simpsons - Season 22 Episode 21 500 Keys
8.01/10 by 9560 users
When the Simpsons discover a collection of keys to every door in Springfield, Lisa stumbles upon an eerie hidden classroom beneath Springfield Elementary School. When she shares her discovery with Principal Skinner, the secret room mysteriously disappears and he takes the only key away. A determined Lisa uses her detective skills to lead her back to the room to solve an old school mystery.
- Title: The Simpsons
- Year: 2024
- Genre: Family, Animation, Comedy
- Country: United States of America
- Studio: FOX
- Director: Matt Groening
- Cast: Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer
- Crew: Danny Elfman (Main Title Theme Composer)
- Keyword: nuclear power plant, middle class, cartoon, satire, parody, dysfunctional family, school, social satire, family, adult animation, sitcom, kids, animation
- Runtime: 22 minutes
- IMDb: 8.01 / 10 by 9560 users
- Popularity: 874.832
- First Air Date: Dec 17, 1989
- Last Air date: Apr 21, 2024
- Season: 36 Season
- Episode: 769 Episode
- Language: English
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