During the renovation and demolition of the old city of Jiangzhou City, workers discovered a skeleton that had been sealed for twelve years in the basement of a residential building to be demolished. Interpol captain Lu Zheng was responsible for the investigation and confirmed that the deceased was Su Mian, a 19-year-old female college student who disappeared twelve years ago. As the investigation deepens, Lu Zheng discovers that Su Mian's death involves a complicated network of relationships: a pharmaceutical company suspected of illegal drug testing, an old case that was artificially suppressed, a person who has lived for twelve years under the identity of a dead classmate, and a past that his own wife, Lin Ruoyun, has never mentioned. When the truth is revealed layer by layer, Lu Zheng must make a choice between law and humanity, justice and family.
