In Shanghai in 1942, neon lights and gun smoke intertwined into a dangerous web. On the streets of the concession, there are secret codes hidden in the shouts of rickshaw drivers, Morse code floats in the piano music in cafes, and the deepest secrets are often hidden under the most elegant skirts.
"Third Sister" - this code name wanders between black and white like a ghost. Some say she is the ace agent of the military command, some say she is the secret rose of the underground party of the Communist Party of China, and some even rumor that she is actually a "double-sided chess piece" placed by Japan's super high school. But no one knows her true identity. They only know that she always wears a dark green cheongsam, has a pearl hairpin in her hair, and has a smile as bright as a flower. She can kill people without being seen.
That night, in the secret room of No. 76 Xiafei Road, a piece of top-secret information was circulating: "The third sister has appeared at Paramount and will meet with the CCP liaison officer code-named 'Qingluan' tomorrow."
At the same time, in an apartment in the French Concession, the third sister was adjusting her pearl earrings in front of the mirror. The reflection in the mirror reflected the cold light in her eyes, but a smile appeared at the corner of her mouth: "Tomorrow, it's time for this scene to end."
