Not quite as strong as a couple other Louise episodes (not much is going to top S13E22: Amelia for pure Louise), but still quite good and inventive. Without getting into spoilers, Louise puts together a dollhouse murder mystery for Tina and Gene after seeing her substitute teacher's creative doll murder photos. But it's not for fun, she has a touching and earnest message she's trying to convey but she's, well, Louise, and if there's a weird way to convey an important message, she's taking it.
The B-plot is a somewhat silly, but meme-able predicament that Teddy gets himself into because everybody's at the Dollhouse store.
One thing that would have made the episode stronger is a bit more buildup in the inciting incident. Gene doesn't seem anywhere near bothered enough by not being invited to a gathering to warrant Louise going to these lengths.
Even though it can't hit quite hit high points of Amelia, it's a simpler story that reminds us that the Belchers are really weird people, but part of that weirdness is that they're good people in a cynical world.