Alice's backstory wasn't quite as horrifying as I was expecting. The way Skarsten talked about it in the interview I linked to the other day, I was expecting something a lot worse.
That was a bit underwhelming. The teaser tried to hint a sort of Silence of the Lambs / possible pedophile story, but the only thing leaning in that direction was the human skin face, but that was the worst of it. Unless there's another flashback detailing how they escaped the father--like killing him and using his own skin-stripping procedure against him--this was not the horror suggested by the teaser.