Yeah, it's just bizarre that they would think anybody would want to watch that.
I guess ... maybe they're thinking, it's kind of like Single White Female or Fatal Attraction? Where everyday life becomes nightmarish, due to just coming across a severely unhinged person?
But yeah, the crucial distinction their concept is missing would be that the antagonists in those movies were just lone, scary individuals, which is pretty different from the threat posed by this neighboring Karen. A person who seems normal at first but ends up homicidally threatening has a whole scary thriller vibe ... while a hateful racist who wants to weaponize the whole racist structure of society against you ... is a whole different thing.