Sally = Ally?
There are already many parallels between Don’t Be Afraid of the Dark and AHS: Cult, namely in the character of Ally, whose name even sounds like Sally. Ally, too, is stalked in her home by malevolent forces who want her to join them. They may be goblins in the movie and clowns in the show, but their methods are the same: prod and pry and victimize until the sanity of their subject is tested by everyone, including herself.
Ally’s wife, Ivy -- like Sally’s husband, Alex -- is a key component in the gas-lighting. When Ally witnesses the death of one of their restaurant employees, Ivy phones her shrink, Dr. Rudy Vincent, who makes a presumptuous house call. She’s in constant disbelief of what Ally claims to see, reminding her of her trauma and the implausibility of her statements. When Ally questions their new neighbors, Ivy explains to them, “If there is a story about something horrible happening, Ally knows about it.”