You could write about how the episode critiques the lengths people go to for "perfection" and how society treats aging women as "invisible."
The episode shifts from a medical drama to a folk-horror story. Watch American Horror Stories S02E06 WEBRip x26...
Like many American Horror Stories episodes, it uses physical mutilation to mirror psychological desperation. Theme: Ritual and Cultism You could write about how the episode critiques
The twist involves a literal transformation. You can analyze the irony that in trying to look like a "god," the protagonist is turned into a ritualistic animal. cult-like ritual at the end.
Contrast the sterile, modern aesthetic of the surgical clinic with the primal, cult-like ritual at the end.