It's April 1939 and, with their lives in Berlin and Vienna under threat, Esther and Kitty – two very different women – are forced to make the same brutal choice. Flee Europe, or face the ghetto, incarceration, death.

Shanghai, they've heard, Shanghai is a haven – and so they secure passage to the other side of the world. What they find is a city of extremes – wealth, poverty, decadence and disease – and of deep political instability. Kitty has been lured there with promises of luxury, love, marriage – but when her Russian fiancé reveals his hand she's left to scratch a vulnerable living in Shanghai's nightclubs and dark corners. Meanwhile, Esther and her little girl take shelter in a house of widows until the protection of Aaron, Esther's hot-headed former lover, offers new hope of survival.

Then the Japanese military enters the fray and violence mounts. As Kitty's dreams of escape are dashed, and Esther's relationship becomes tainted, the two women are thrown together in the city's most desperate times. Together they must fight for a future for the lives that will follow theirs.