After a violent tragedy, Sadie makes a deal with the Devil: if she exchanges an evil soul for her own within a month, she can have a second chance at life. Deeply empathetic and jarred by her experience, she makes her way through Appalachia with only her father's truck and a coffee tin of dollar bills.

But she doesn't need to travel very far to find evil. In fact, he greets her at an isolated gas station off of a rural state highway. Ridge is as beautiful as he is deadly, and Sadie has stumbled into his hunting grounds. Soon they begin a deadly game of cat-and-mouse (or wolf-and-human) that turns them both feral for one another. When Sadie seeks shelter with none other than Ridge's veteran older brother Wright, tensions escalate towards explosion. And, frankly, demonic levels of horniness.

In this multi-POV story of revenge, lust, humanity, and sacrifice, three characters are pushed to walk the knife's edge of humanity and hell, of saviors and sinners, of fated and fatal love.