In Shanghai in the 25th year of the Republic of China, chaos arose in the border area between the concession and the Chinese border. Traitors colluded with the Japanese army to murder compatriots. Shengping Theater became a hidden place where all forces secretly dealt with each other. The 60-year-old leader Zhao is in charge of the theater. He not only adheres to the integrity of the opera house, but also struggles to protect his disciples in troubled times. He also hides a secret - the top performer in the theater, Qingyi Su Yutang (stage name "Jade Luosha"), is no ordinary actor. The 22-year-old Su Yutang is gentle and gentle on stage and is sought after by thousands of people, but off stage he is a calm assassin carrying a blood feud. His father, as a patriotic general, was framed by Zhang Qishan, the puppet government's chief financial officer, and his entire family was executed. Leader Zhao risked his life to rescue Su Yutang, taught her how to sing incognito, and helped her lie dormant for five years while waiting for revenge. At the same time, Shen Yanzhi, the 28-year-old inspector of the Concession Patrol House, appears to be a cold and business-like detective, but is actually an undercover agent of a patriotic organization. His father was a comrade with Su's father and was also persecuted to death by Zhang Qishan. He lurked in the patrol house just to get close to his enemies and protect patriots.
