When Marge and the kids take a seaside vacation at the invitation of Aunt Edith in Hyannisbunkport,note Homer is unwittingly tempted by a British bachelorette, Lily (Olivia Colman).
Tropes
- Blithe Spirit: Lily is such an upbeat soul she inspires happiness everywhere she goes.
- Couch Gag: The Simpsons' couch is on the Moon. The whole family sits down, except Homer, who just bounces off.
- Doppelgänger Replacement Love Interest: Lily is ultimately heartbroken when Homer chooses to remain faithful to Marge, but finds a British man nearly identical to him. The only difference is he has a mustache, which she asks him to shave.
- Dude Magnet: Lily has every man who knows her wanting to marry her not strictly because of her beauty, but because she makes them feel so happy.
- Framing Device: One where Willie is recounting Lily's story to Nelson and some animals.
- Freeze-Frame Bonus: Aunt Edith's invitation is headlined "NO HOMERS" and includes the episode's production code number ZABF14.
- I Love You Because I Can't Control You: Lily becomes hopelessly smitten with Homer because he's the first man to ignore her instead of near immediately asking for marriage.
- Persona Non Grata: The plot is kicked off by the Simpson family going off to spend a vacation at a house of Marge's aunt. Homer is forced to stay behind because her one condition is that he can't come.
- Pop-Culture Pun Episode Title: The title references The Seven Year Itch.
- Recycled Title: It's also the second episode in modern Simpsons whose title alludes to that film, after The Seven Beer Snitch
- Where the Hell Is Springfield?: Alluded to when Lily plays Decision Darts on a map of the US to decide where to go in America and a sudden gust of wind blows it off course into a pamphlet about visiting Springfield.
