Dusty Code Words

In the winter of 1978, college student Su Xiaoyu disappeared mysteriously, leaving only a loan card. Five years later, newcomer Lin Xiao discovered that the last name on the card - Zhou Wenqing, a gentle and elegant chemistry lecturer, was dated on the day of disappearance. When the detective chief restarted the investigation, he found that all the clues pointed to "The Count of Monte Cristo" that the two had read together. The chemical traces between the pages, the faded hairpins in the wall holes, the unsolved mysteries at the bottom of the waste pool... A perfect murder written in five years, waiting to be deciphered.