An investigation leads to red-hot danger… Reviewing a murder from twenty years ago, FBI Special Agent Scott Lynley needs the last person who saw the victim alive. Still haunted by her aunt’s death, FBI Victim Specialist Abby Zhang is eager to help. But someone is keeping clues hidden, which puts Abby in the crossfire. Scott’s mission is to solve the case but Abby's quickly becoming his first—and only—priority…