Hong Kong, 1940. For the reckless young journalist Stevie Steiber, days at the Happy Valley racecourse slip into dangerous, hedonistic nights. Meanwhile Major Harry Field, a British Intelligence Officer, is investigating the recent arrival of Wu Jishang, a sophisticated publisher who owns a controversial political magazine.

But it is Stevie, Jishang's close colleague and lover, who really fascinates Harry. As the British community continues to party despite the looming threat of war, the two are obsessively drawn into a dark passion. And when the Japanese army seizes the island, they are faced with terrifying challenges – how far will they go to protect each other?