Lin Yi, a poor doctor, married Su Qingyin, a boss with A13 level authority, and was treated as a joke by everyone at the wedding. Wearing a rented suit that didn't fit him, he was publicly challenged by his mother-in-law and humiliated by his love rival Chen Zhixing with Zhang Daqian's original work. At the critical moment, the senior colonel sent the A13 badge, which shocked the whole audience.
After the marriage, Su Qingyin made a show: she chose Lin Yi because his ability to study Cold War history could help her find the truth about her brother Su Qingyuan's betrayal ten years ago in the deep memory bank. Lin Yi agreed to help her.
At the Su family dinner, Lin Yi used historical knowledge to slap his mother-in-law in the face, and won the chess game with Mr. Su, gaining his approval. Chen Zhixing showed off his provocation and revealed that Lin Yi's father's work-related injury was not an accident. Lin Yi began to investigate independently and found that the tower crane accident at the construction site where his father worked, the death of maintenance worker Zhou Desheng, and the death of Su Qingyuan all pointed to the same behind-the-scenes force.
Lin Yi and Su Qingyin joined forces, using decrypted files and logical deduction capabilities, and finally entered the deep memory bank on the eve of the signing of the agreement that determined the Asia-Pacific pattern, and used a yellowed file to smash the thirty-year lie weaved by the international intelligence agency. The real mole "Shipmaker" was caught, and the truth about three murderous cases came to light.
After the dust settled, Lin Yi returned to school to continue writing his doctoral thesis. The guard at the door gave him a silent salute. Su Qingyin asked him if he regretted it, and he said: "It's okay, but the anti-corrosion treatment of the paper in your archives in the 1950s was so poor that it made my nose allergic." With the lights of thousands of houses outside the window, the white chess piece in his pocket had been warmed by the cover.
