20 years ago, shape shifters announced themselves to the world, only to be shunted to areas no human wanted 'Shiftertowns'. They were forced to wear collars that controlled their hunting and fighting instincts. When Feline Shifter Cassidy Warden saves detective Diego Escobar from plunging to his death, the naked Shifter woman takes his breath away. But she'd been breaking all kinds of human laws in the hunt for her mate's killer. To save her from termination, Diego has to promise his department he'll watch over her. Diego finds the task harder than he thinks.