The Undead in the World Begins with Heavy Rain

There have been many falling incidents in Shanglin City recently. The police conducted several investigations but did not find any murderer. They can only attribute it to suicide. However, there is indeed an unknown murderer behind this incident. The experienced criminal police officers sensed anomalies in the case and tried to find the truth. The new and old generations of forensic doctors worked together to dig out clues hidden in the body of the deceased to realize their respective ideals. The mysterious consultant frequently appears on the scene. What role does he play? Can the guilty undercover agent return to duty and be redeemed? It all started with heavy rain.