Eight years ago, Ian rescued a sprite-like boy named Hailey from the serial killer organization "The Hunters," forming an extraordinary bond with him. But after learning the truth behind Hailey’s stepfather’s death, Ian begins to suspect that the one he saved might be the real devil. Eight years later, Ian leaves the military and becomes an ordinary FBI agent—partnered with the now-grown Hailey, an alluring and enigmatic young man. With an angelic face and an unpredictable mind, Hayley teases Ian’s nerves in every way possible, step by step ensnaring him beyond escape. And Hailey’s unorthodox deductive methods always keep Ian on edge. —*"How did you figure out the killer’s method? It’s so irrational, so twisted!"* —*"Oh, I just put myself in the killer’s shoes for a moment."* —*"..."* —*"Just kidding. You really believed that? I was thinking from the victim’s perspective."*