The story revolves around a series of bizarre cases that happened in Jiangcheng. Su Mu, captain of the criminal investigation team, led her team to find the truth amidst the fog. As the investigation deepens, she gradually discovers that these cases are not isolated, but closely connected with a huge conspiracy. Su Mu not only has to face cunning criminals, but also fight against the corrupt forces hidden within the police force. In the process of pursuing the truth, Su Mu continuously unearthed the truth about her childhood shadow, and gradually uncovered the dark secret behind Jiangcheng. At the same time, the fates of reporter Gu Cheng, forensic doctor Qin Lang and others are also closely related to these cases. They provide help to Su Mu in their respective fields and jointly fight against evil forces. In the end, Su Mu relied on his wisdom and courage to bring the mastermind to justice and restore peace to Jiangcheng.
