[Xiweng Lu] is adapted from a book called "Xiweng Lu" written during the Song Dynasty (1247 AD). This amazing work in the history of forensic medicine records the life of Song Ci, a pioneer of Chinese forensic science, and how to unravel the strange cases that stirred the court and the public at that time.
Song Ci (played by Ouyang Zhenhua) was born in a coffin and was teased as a "coffin boy" and was discriminated against.However, he is optimistic and positive, and he is never affected. He is a happy fighter.Until he and the chivalrous woman Tang Si (played by Xuan Xuan) were involved in the murder of the village chief and were sentenced to death. During the investigation, he received the help of the new magistrate Song Yi. In addition to being wronged, he was also hired as a coroner.The two then joined forces to solve strange cases repeatedly.Tang Si and the constable Nie Feng (played by Chen Miaoying as both having a crush on Song Yi, but Song Yi married Lan Caidie, a wealthy daughter. Song Yi's intelligence and honesty gradually made Tang Si and Nie Feng look at each other with admiration. At this time, news that Tang Si was a princess came. At the same time, Song Yi's behavior aroused the suspicion of his parents. He... isn't he real Song Yi?