Two male protagonists||Criminal investigation reasoning
Xing Police Captain Gu Yan, who has a strong sense of force, and Shen Yanzhi, a university professor who is cold and aloof, but actually fearful of society.
Shen Yanzhi, who was going abroad to relax, encountered an accident. His companion was accidentally injured but died of poisoning?
A retired lady worked as a matchmaker, but was murdered in a dirty alley?
A girl in red chooses to jump off a building, but the screen saver on her phone is actually Gu Yan?
.......
A series of criminal cases seemed to be unrelated, but in the end they came together.
