Life has never been kind to teen, Elle Connor. With a troubled home life, the gritty, violent streets of Los Angeles have become her home. She never questions her superhuman abilities until she encounters, in a fight or die situation, a guardian angel Tagas, who reveals her holy origins as one in a long history of demon hunters. She also has her eye on her attractive classmate, Brandon. Problems arise when Elle finally realizes that life as a hunter is fraught with tragedies and is deeply lonely. Elle is presented with a choice - follow her calling from God as a hunter or live a "normal" life with love. Can Elle tip the scales in favor of what's good or will she become just another casualty in the eternal war between good and evil?

Elle Connor's life is as grim as she had always feared. Years of demon slaying have left her with nothing to show for her trouble. She's convinced a "normal" life was never meant for her. Patrick Holt wants nothing more than to be away from the holy wars and has lived quietly for years as an average human. The trouble is that he's anything but average—he's a fallen hybrid angel. When Tagas the guardian angel pairs them up to investigate the brutal slayings of young women in Los Angeles, Elle wants nothing to do with Patrick. As Elle and Patrick begin to understand each other, irritation is forgotten and fiery passion ignites between them. "No ties" is how they both live, but Elle soon begins to long for much more. As they become sucked deeper into the mysterious killings, Elle fears that, in this battle, Hell will win.

Elle and Patrick have settled into a life of peaceful domesticity with their infant daughter after years of battling in the holy wars. However, Hell's agents haven't forgotten about them. When Pyro unleashes his torment in the worst way, Elle and Patrick must find a way to save their child and hold onto each other in the face of incredible evil. Will Hell have the last word in a battle that forces Elle to return to the darkness inside herself?