Charged with overseeing the shapeshifters of New Orleans, Caitlin MacDonald has her reasons for being wary of their kind. So when charismatic bounty-hunting shifter Ryder Malloy blows into town claiming to be on the trail of a horde of malevolent entities called Walk-Ins, Caitlin has no reason to trust him -- with her city or her heart. But as tourists start dropping dead from supernatural possession, Cait must team with Ryder to navigate his shadowy, ephemeral world...

Fiercely independent, Ryder usually hunts alone -- but this case requires an exception. To prevent a supernatural massacre, he needs the beautiful Keeper on his side -- and, if possible, even closer. In his world, appearances can be deceiving and deadly. And the only way they'll survive is if this woman who tempts him like no other trusts in him completely....