1937, Shanghai Gudao. The cold-faced policeman Zhu Xi is trapped in a nightmare where his partner died tragically three years ago. He uses indifference as his armor and rejects all tenderness. Tang Xia, an underground worker codenamed "Xia Chan", is like a blazing fire in the dark night, using her identity as a reporter as a cover to dance on the tip of a knife. A carefully constructed murder case blatantly intersects two parallel lines. From the probing and exploiting each other with their own motives, to the life and death struggle in the hail of bullets, his frozen heart was illuminated, warmed and melted by her decisively. When the "ghost" lurks and trust collapses, they become each other's only armor and weakness. This is a two-way journey of faith and love in a treacherous sea of espionage, a fiery legend of mutual redemption in the years of war. The dark night will eventually end, and Xixia will also be like light.
