In the late autumn of 1943, undercurrents were surging in the occupied areas of Shanghai. Lin Wanqiu, a surgeon at St. Mary's Hospital, appears to be a medical elite who returned from France, but his true identity is the ace military agent "Nightingale". During a late-night emergency call, she took out the encrypted film of the Japanese army's "Sakura Project" from the body of a dying casualty, but she didn't know that she had fallen into a triple vortex.
Shen Mobai, the deputy director of the Wang Puppet No. 76 Special Agent Headquarters, took the lead in attacking. This traitor leader, known for his cold-bloodedness, secretly protected him in the interrogation room. The old scar on his left little finger evoked Lin Wanqiu's memory of Nanjing three years ago - the CCP agent codenamed "White Pigeon".
Gu Mingxuan, the Japanese consulate translator, is gentle and elegant, with an impeccable background at Tokyo Imperial University. But Lin Wanqiu was keenly aware that this Japanese major major was extremely sensitive to germ warfare information. In the shadow of his elegant smile, there was a blood feud for his father's death in Unit 731.
The secret text of the film reveals a shocking inside story: On November 15th, the Japanese army will release infected rats into the slums of Zhabei. The ten-day countdown started, and Lin Wanqiu was forced to reach a dangerous cooperation with Shen Mobai. She sneaked into the consulate dance to steal laboratory blueprints, and he took risks to blow up the Japanese supply lines; she dealt with Gu Mingxuan's affection and suspicion, and he danced alone on the tightrope of a double agent.
Reporter's best friend Su Yuwei went from panic to awakening. Patients with "strange diseases" began to appear in the shantytowns of Zhabei, and a secret laboratory was quietly set up in the basement of St. Mary's Hospital. When Gu Mingxuan turned his gun at the last moment, when Shen Mobai showed his broken party membership card, when Lin Wanqiu faced the desperate situation of having to shoot one person...
Before the bloody dawn, everyone is betting
