How do you stop someone who could go back and kill you before you'd know who he was? At age ten, Katheryn Sanders watched her brother die. Gunned down in a filthy alley by an unknown assailant for reasons that have yet to be determined. Nearly forty years later she's a prominent detective for the Chicago PD. But for all her success, her most significant unsolved case continues to haunt her. She has yet to find her brother's killer. As Sanders delves into her latest case she's drawn back by connections to her own past. A futuristic bullet matching the one that killed her brother and a wealthy industrialist claiming he travels through time. Add that to a trio of assassins alleged to be the same person and a college professor who can appear in two places at once and Detective Sanders has her work cut out for her. Only when she's willing to consider the impossible will she uncover the truth behind her brother's murder and stop a time-traveling sociopath bent on revenge before he destroys all time and space.