CFTT is China's Third Criminal Investigation Brigade, which is responsible for solving serial murder cases or collecting evidence for some important cases. There are only four important members of this team, but their role is incomparable to that of the other 40 people.
Introduction of important figures
An Lan: Female, she is not only a highly skilled forensic doctor, but also has good inference ability. She usually has a cold personality, but she has a hidden poisonous tongue.
Li Feichen: Male, a former SWAT officer. He was transferred to CFTT because of his outstanding abilities. He became taciturn because of a previous mistake.
Mu Guo: Female, a very cute name given to a man. She is the captain of CFTT. She has extremely high reasoning ability and computer skills. She has solved many serial murder cases and has a lot of experience.
Qi Fei: Male, he completed a college course on criminal psychology in the United States when he was only 16 years old. Although he is a genius, he is also a tease. He usually does nothing but is very serious when it comes to serious matters.