I, King of Criminal Investigation, Solving the Rainy Night Serial Murders from the Beginning.

Summary

In a hospital room, Guan Feng and Zhang Yong interrogate Xia Jie about a spy case. Initially defensive, Xia Jie eventually confesses his involvement, revealing he was drawn into a situation involving his daughter's troubles. The investigators uncover significant evidence of national losses, leading to the resolution of the Jiangnan Aircraft Factory case. Guan Feng is subsequently recognized for his exceptional work, earning a computer expert certification and a prestigious position with an attractive salary, marking a significant career breakthrough.

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