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

Summary

A nursing home investigation reveals a complex human organ trafficking network. Guan Feng interrogates Li Yuan Chang, the nursing home director, about suspicious deaths and DNA evidence. Under pressure from mounting evidence and potential testimony from Hu Xiu Er, Li Yuan Chang eventually confesses. The investigation exposes a multi-provincial organ trafficking gang operating for 4-5 years, with Li Yuan Chang being just a subordinate in a larger criminal network spanning multiple provinces and hospitals.

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