Wicked Creatures - The Unnaturals Series, #3

Scott Hunter hadn't expected to end up in New Orleans. But that's where he and his partner, Riley Walker, have found themselves: in the heart of a city known for its connections to the supernatural. That reputation is well earned-and makes itself known when the bodies start to drop around them. Scott quickly realizes what's after them this time: werewolves. But they're not acting alone. There's a woman, one dressed all in red, one with the ability to command werewolves to her will.
And she's fixated on Scott as her next target.