horror films from the late 2010s with female leads, that are slow burns, but have a really fucked up incident at the end of the first act, which leads to an insane climax that involves too many naked people

It's only six films, but aren't you still shocked it's that high?
Suggestions welcome, if it turns out I missed a slow burn horror film, punctuated with one early act of violence, that ends in an insane climax full of naked people.

  • Midsommar
  • Suspiria
  • Hereditary
  • The Perfection
  • mother!
  • The Witch