The discovery of a female corpse in a river on a rainy night was revealed, and criminal police team leader Gao Jian and forensic doctor Li Qian teamed up to solve the case. From identifying the real culprit based on the ingredients of perfume in the case of the murder of an Internet celebrity, to digging into cross-border money laundering cases, facing the shadow of the death of frontline workers three years ago, to solving the death case of health care product fraud to protect the elderly, the two have repeatedly solved strange cases. Gao Jian uses logical loopholes to defeat sophistry, and Li Qian uses trace physical evidence to restore the truth. In the process, she breaks outside prejudices and gradually becomes a trusting comrade. As the investigation deepens, they discover that the financial giant behind the money laundering case is just the tip of the iceberg. A larger transnational criminal group has surfaced. A battle involving justice and life and death is waiting for this "sharp sword" to strike with full force. ,
