22-year-old Jess Valenzuela's life is turned upside down whenshe meets a mysterious stranger who holds a clue to an ancienttreasure linked to her long- dead father. With the help of herfriend Tasha, Jess uses her knack for puzzle-solving to tryand crack the clue. But they both soon realize they're in wayover their heads when Billie-a ruthless black-marketantiquities dealer-joins the hunt.