The 'Kramer, what's going on in there' meme originates from the 1996 Seinfeld episode 'The Chicken Roaster.' In the scene, Jerry Seinfeld notices a bright red light emanating from Kramer’s apartment caused by a newly installed Kenny Rogers Roasters neon sign. When Jerry investigates, he finds Kramer visibly distressed by the 'red menace.' The meme template typically features the moment Jerry opens his door to the blinding red glow, often used to depict someone discovering a chaotic, overwhelming, or niche obsession hidden behind a door. It saw a massive resurgence on Twitter and Reddit in late 2021 as a versatile format for crossover humor.