The episode was written by Danny Zuker & Christopher Lloyd and directed by Fred Savage.
Cam (Eric Stonestreet) feels he has neglected Lily (Aubrey Anderson-Emmons) lately with his commitment to work which Mitchell (Jesse Tyler Ferguson) misinterprets as his job not going well.
Meanwhile, Haley (Sarah Hyland) starts a flirtation with a much older co-worker named Kenny (Jason Mantzoukas), wanting to get a rise out of her parents.
In its original American broadcast, "Party Crasher" was watched by 11.01 million; down 1.03 from the previous episode.
"[3] Leigh Raines of TV Fanatic rated "Party Crasher" with a 4.5/5 saying that this kind of Modern Family episode had been her favorite.
This one brims most beautifully with sentiment that feels true, slapstick that works (entirely at Lily’s expense), and writing that glimmers like chrome.
"A baby, a surprise birthday party, Manny’s first kiss, and references to "Stacy’s Mom" and Mrs. Robinson?
"Party Crasher" was a packed-full half-hour that delivered touching family moments and heartfelt humor.