Karyn Mitchell is a homicide Detective with the Boston police department. When a body shows up with the calling sign of the infamous Hades serial killer| she is puton the case alongside her partner who just happens to be her ex fiancée. It quickly becomes clear that Hades has a special interest in Karyn when he starts callingher. Not knowing who to trust| she has to reconcile the ghosts of her childhood in order to stop Hades from claiming his next victim.