Theresa Singer didn't have much of a childhood, but she did make the most of her young adult life. At twenty-four she was already making her way through the ranks of the FBI with a potential promotion in the works. However, her life plan quickly falls apart when introduced to a case of serial killers that originated in St. Louis.
Suddenly, she and her sister, Delilah, are thrust deeper into the world of the supernatural than they'd ever anticipated. Sure, they'd taken a case here and there, but never had they faced a threat like demons... at least not since their mother died. Now their secrets of the past are being tossed out into the open and only the name Winchester is to blame.