December 1999. Alex Martin has put the Finding Machine into storage. All she wants is a quiet life. But when a panicked teen phones for help on the coldest night of the year, Alex dusts off the machine and breaks every rule in the book to save him. In an instant, her life is thrown into chaos, she's fired from the job she loves, and her relationship with Antony is stretched to breaking point. The rescue attracts the attention of Detective Henry Longhurst, who is intrigued by Alex's method of finding people. He wants her help to catch an elusive murderer who keeps changing his identity. But there's a problem-the finding machine is glitching and could stop working any moment. With the new Millennium around the corner, Alex must race against the clock to fix her heart and find the faceless villain before he strikes again. Tick Tock.