1, Tang Shuo used the evidence of Kitazawa family to cooperate with Shen Junxian that day, which made Kitazawa show his true colors. His childhood was abused by his father who believed in elite education, and he hated his family. So, he found three young people and killed them on 18 birthday. Unexpectedly, three young men gang-raped Shin Ae, but Kitazawa, who witnessed everything, did not save Shin Ae, and all his selfish lies were exposed.

2. Finally, Tang Shuo lied that Xin Ai exploded in the police station, which eventually led to Kitazawa collapse and was injured by the police. Everything is over, everyone has started a new life, and Tang Shuo has firmly established his belief in justice and returned to Hong Kong. However, the whistle of night fog sounded again in the corridor of the hospital ward where Beize was held.

Brief introduction to the story of the crime fighter;

Tang Shuo (Yang Qiming)' s Korean girlfriend was killed in Seoul. In order to find out the truth, Tang Shuo, with the cooperation of criminal police officer Shen Junxian (Sheng Haoan), cracked a serial chamber murder case and caught the murderer who killed his girlfriend.

However, Tang Shuo thinks that the killer's intelligence is not enough to design these methods of killing in the secret room. In order to catch the man behind the scenes, he stayed in Seoul with the help of female reporter () and international student week (). Then, through careful logical reasoning, Tang Shuo cracked a series of murders in the secret room and finally found the real murderer.

The above contents refer to Baidu Encyclopedia-Crime Destroyer.