1910, and America's first ever cross-country flying race has been sabotaged.... Newspaper magnate Preston Whiteway is offering a big prize for the first aviator to cross America in under fifty days. He wants Josephine Frost - the country's leading, as well as most glamorous pilot - to win. Which is why he's hired Isaac Bell of the Van Dorn Detective Agency. Josephine saw her husband, Harry Frost, kill a man.
Criminal investigating officer Hanne Wilhelmsen considers the possibility of a serial killer as she tracks down a series of numbers written in blood appearing on walls all over Oslo.