Guixiang (played by Wang Luodan) has shown an IQ far higher than that of ordinary people since she was a child. At the age of thirteen, she helped the police solve major cases with her logical reasoning. As a result, she became a famous genius detective. However, the seemingly impeccable Guixiang has a fatal flaw-very low emotional intelligence. Guixiang has been dragged down by low emotional intelligence all her life, and was eventually abandoned by her boyfriend because of this. Guixiang can't get out of the shadow of her past feelings, and she is addicted to grief and her own world. At this time, a corpse dismemberment case attracted Guixiang's attention and made her come out again, but the hateful criminal policeman Azhe (played by Zhou Yuming) who came out halfway disturbed Guixiang's thoughts again and again, as if deliberately against her. Guixiang, who refused to admit defeat, regarded Azhe as a strong competitor. The two competed with each other and vowed to find the murderer.