There was an old anime movie between 2000 and like 2008 that I can't remember the name of.
It had a futuristic setting and the main characters were a group of girls.
The movie seemed to be about a murderer that no one knew who it was.
The world is about as futuristic as Accel World with that kind of technology.
That's about as much as I remember, Thanks to anyone who can identify it.