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

Summary

Police officers Guan Feng and Wang Xun investigate a floating corpse case, stopping at a restaurant where a mysterious motorcycle has been parked for two days. The restaurant owners, Da Guo and his wife, confirm they noticed the abandoned motorcycle but didn't know its owner. Guan Feng suspects the motorcycle is connected to the case and decides to seize it for investigation. The officers plan to trace the motorcycle's ownership through its engine and frame numbers, hoping to find crucial evidence related to the ongoing criminal investigation.

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