《Mr&Mrs Chen》Episode plot

In Shanghai in 1940, Chen Jiaping, an underground member of the Communist Party of China codenamed Plum Blossom Four Percent, met his former fiancée Zuo Shuangtao at the critical juncture when he was almost exposed during a mission.At this time, Zuo Shuangtao was already an agent of the Kuomintang military command. He failed in his assassination mission and was looking for a way out of trouble.The two people, who did not know each other's identities as agents, relied on their tacit understanding to cope with the Japanese's rigorous interrogation, and finally passed the test as a couple.