Perfect Detective Cheng Mo is the most famous detective in H City, with a 100% case detection rate, extraordinary observation and reasoning skills, and is regarded by the police as an indispensable expert in solving crimes.
Hidden Motive When Cheng Mo was a child, he witnessed his father being wrongly accused of being a serial killer and committing suicide. His mother suffered a mental breakdown as a result. He was determined to take revenge on the police officers who were involved in his father's case.
The first murder case: Cheng Mo carefully planned to kill retired police officer Ma Guoming. The scene was arranged in the style of the "Blue Rose Killer", an unsolved case ten years ago, and he deliberately left subtle loopholes to guide the police investigation.
Dual identity Cheng Mo intervened in the investigation as a detective, using his professional knowledge and the trust of the police to both promote the investigation and secretly control the direction to ensure that he was not suspected.
Psychological Games Cheng Mo and police detective Lin Yu engage in an intellectual contest. Lin Yu has doubts about this perfect detective, while Cheng Mo enjoys this dangerous game process.
Key evidence Cheng Mo deliberately left a small but decisive clue at the crime scene - a special button, which paved the way for the subsequent plot development.
Intention: None
