Police Station No. 9: 9 Murders Committed by Murderers

[Urban criminal investigation + suspense reasoning + unit story + father and son teaming up + no CP + high IQ crime] Li An and Li Chan from Police Station No. 9 Are hard-core detectives and father-son soldiers! Work together to solve strange cases and never fail! A serial murder case breaks out in Jiangcheng, and the police station is helpless! The mysterious murderer Z turns into a genius criminal and the situation is unsolvable! He even left marks many times, singling out father and son for crazy provocations! After months of tracing, the truth sent chills down the spines of both father and son—— This cold-blooded and murderous Z is actually Ang Lee's ex-wife who disappeared for many years and completely turned into a black man due to a blood feud! Why did the person I used to sleep with turn into a murderer? A dragnet is laid for revenge, sophisticated crimes are pressing closer, and the father and son fight to the death! On one side is the unremitting love of the past, on the other side is the legal justice that cannot be violated. The father and son endured the severe pain and faced their most familiar enemy! Unravel her perfect plot and break her deadly mystery! But is there a deeper secret behind her revenge? In this life-and-death battle of wits between a detective and a genius criminal, who will have the last laugh?