It is complicated and I can't really remember that much at the moment. The modern pregnant girl is scraping off wallpaper and finding a mural behind it of 'Alice in the woods'. Her husband was signing with a deaf woman he ran into by chance in the street that he must have known in his past. I think there's an implication that he lived in the house as a child. It finished with the 80s lot finding their kitten drowned in the garden pond and the little girl saying Alice did it. I think that's some of it.