Sarah Carter, mother of twelve-year-old Marni, is raising her daughter alone in a small granny flat in suburban Melbourne. A serial killer, dubbed 'The Freeway Killer', is headline news and when Marni's classmate is abducted from the mall where Sarah and Marni shop, their city no longer feels safe. Detective Ross Hunter's investigation into the abduction leads him to dead ends -- until an unrelated incident sends him to the door of Freddy Adam-Jones, an unscrupulous barrister, who is guarding a secret that could ruin his life. When an unexpected windfall changes the lives of Sarah and Marni, their sudden wealth opens doors long closed, and threatens to cast light on history better left buried. What might Sarah's past reveal? What is her connection to Freddy? And can Detective Ross Hunter discover the link in time to save a young girl's life?