Night Shift - The Jill Kismet Books: Book One

Jill Kismet is a dealer in dark things and demon slayer, and it's her job to patrol the nightside. In the cold pre-dawn, Jill is called in to assess the aftermath of a particularly savage cop-killing. Under the haunted eyes of the forensic techs, Jill picks up the stench of hellbreed and something else - something dangerous and tainted. But this makes no sense as hellbreed always work alone, distrusted even by their own kind.
Jill's a Hunter, trained by the best, but she's in over her head. Welcome to the night shift ...