Belated Letter

In July 2007, criminal police captain Yu Hui solved a murder case in Lianghe City. However, just after the case ended, another murder case surfaced. During the investigation, Yu Hui used a mysterious phone number on the victim's mobile phone to uncover the truth of the case step by step. But with the emergence of new clues, new problems also arise, and all the relevant people pointed to by the clues are killed one after another. The cases are distributed in three cities, and the victims seem to be unrelated but have subtle connections. The answers to all the cases seem to point to the same place. In the process of decrypting and revealing the truth of the incident, Yu Hui unexpectedly discovered a secret about himself, a secret that had been concealed by his father all his life. How to accept the answer when it is revealed. When the truth is revealed, all the reasons will be known.