France, 1918. In the final days of the First World War, Pauline Deng runs away from her uncle's home in Paris to evade a marriage being arranged for her in Shanghai. To prevent the union, she needs the help of her cousin Theo, who is working in the French countryside as a translator for the Chinese Labor Corps.

In the town of Noyelles-sur-Mer, Camille Roussel is planning her escape from an abusive marriage and seeking to end a love affair that can no longer continue. Camille offers Pauline a room in her house, and the two women become friends. But before long, Pauline uncovers a perilous secret that Camille has been hiding from her. As their dangerous situation escalates, the two women are forced to make a terrible decision that will bind them together for the rest of their lives.

Set against the little-known history of the 140,000 Chinese workers who were brought to Europe as non-combatant labor during WWI, The Porcelain Moon is a tale of forbidden love, identity, belonging, and what we are willing to risk for freedom.