Shanghai in the 1930s, during the city's period of isolation. Inside the Far East's grandest movie palace, the Grand Guangming Cinema, a down-and-out leading man who has completely forgotten his identity and a rookie woman just inducted into the military intelligence service disguise themselves as the cinema's accompanist and projectionist. Together, they take on an impossible mission: find three underground Party members who have gone missing inside the theater while also identifying three impostors planted by the Japanese secret service.
A story within a story, spies within spies. A male pianist and a female weapons expert compose a song of loyalty in blood and flesh, fighting for a brighter future for their country.
