Seventeen-year-old Nate Burnham never thought killing would be easy, but when his girlfriend, Mira Everson, is attacked by an incubus disguised as a classmate, Nate discovers love is worth killing for. With the possibility of a grim future, Nate finds himself in the back of an unmarked van with a decision to make-spend life behind bars or enroll in the Special Abilities Task Force run by the Human Preservation Agency. In order to protect Mira, Nate joins the secret organization and is plunged into a world of monsters, murder, and secrecy. Mira Everson's life is turned upside down when she discovers Nate has been abducted by scientists who have the ability to rewrite lives. She flees her home to escape a deadly agent sent to kill her, and she must come to terms with the idea that any future contact with Nate could result in her death. Thrust into a war between humans and creatures, Nate and Mira are fated to fight on opposing sides. Can they unravel the secrets of the supernatural world or will they face deadly consequences?