In KillerKiller (2007), eight of the worst serial killers in Britain (no, Jack the Ripper’s not among them) are trapped in a version of their prison that looks remarkably like an abandoned asylum, and are picked off one-by-one by a supernatural blonde who turns their favorite murderous scenarios back on them.  Yes, this includes a cheerleader costume. And yet, somehow, most of the movie is NOT discernably intended to be campy.