1926, and in a country still recovering from the Great War, London has become the focus for a delirious new nightlife. In the clubs of Soho, peers of the realm rub shoulders with starlets, foreign dignitaries with gangsters and girls sell dances for a shilling a time. The notorious queen of this glittering world is Nellie Coker, ruthless but also ambitious to advance her six children, including the enigmatic eldest, Niven, whose character has been...