A serial murder case occurred in Zhijiang City 10 years ago. The murderer's modus operandi was extremely unique. After each crime, he would always leave the words "I am the murderer" at the scene of the crime. The city bureau set up a special task force for this case. After a long period of investigation, the task force made a decision against the suspect. Profile, this surprised Cheng Yuyang, who was a trainee police officer at the time. The suspect was very similar to Lu Ziti, who grew up with him. However, Lu Ziti's suicide soon afterward made the case completely suspicious. 10 Years later, the trainee police officer has grown into a "police detective." , In these 10 years, he still has not given up looking for the truth.
Concept: suspense