Due to a laboratory accident, modern forensic doctor Lin Shuyue accidentally traveled to the fictional dynasty "Dayin" and became the daughter of a criminal who was exiled for a family conspiracy. In order to clear her grievances, she was forced to take the identity of her twin brother and join the "Mysterious Cases Department" of the Ministry of Criminal Justice as a man. With the knowledge of modern forensic science and the ability to see the remnants of the dead (Golden Finger), she solved a series of bizarre and unsolved cases, but gradually became involved in the shocking conspiracy of the imperial power, aristocratic families and Jianghu forces...
