There is a mix of crime and horror fiction in this list, so I have picked out just the crime fiction titles with a couple that are both:

WITCHCRAFT FOR WAYWARD GIRLS, Grady Hendrix
VICTORIAN PSYCHO, Virginia Feito
THE IMPOSSIBLE FORTUNE, Richard Osman
THE TENANT, Freida McFadden
THIS BOOK WILL BURY ME, Ashley Winstead
CROOKS, Lou Berney
WE DON’T TALK ABOUT CAROL, Kristen L. Berry
THE QUIET LIBRARIAN, Allen Eskens
NOT QUITE DEAD YET, Holly Jackson
WITH A VENGEANCE, Riley Sager
WE ARE ALL GUILTY HERE, Karin Slaughter