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

Summary

Guan Feng investigates a mysterious case in a property building. While descending stairs, he discovers blood traces and encounters a suspicious property staff member. After questioning other staff, he learns about a peculiar employee named Yan Yong Jiang, known for his cold-hearted behavior, including brutally killing a stray cat. Chen Xue Wen confirms the blood belongs to Liu Yu Fang through DNA analysis. Guan Feng prepares to arrest a suspect, with tensions rising as the investigation deepens.

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