I made a joke in the comments on THIS POST, at the Toast, about how I would like to watch a movie that was just Heather Lagenkamp and Jamie Lee Curtis going around and solving mysteries, but then I started to think about it and actually this is basically a completely amazing idea that I will now elaborate.
The premise of Final Girls, Inc., is that our heroines have formed what is essentially a private-detective agency, except instead of going around from town to town and fighting and killing monsters, they go around in search of other “final girls” — people who have survived horrific encounters with the supernatural — and help them cope with the trauma and put their lives back together.