The landmark of the bustling city, the century-old clock tower, rang at an inappropriate time on a night of thick fog. The next day, a well-known philanthropist was found dead in a locked bell tower secret room. The scene was arranged like a strange ceremony.
Police elite Lin Ke was ordered to investigate, but found that all the evidence pointed to a person who "died" three years ago. Is it an innocent man seeking his life, or a well-planned revenge? The deeper the investigation went, the more Lin Ke discovered that the case was closely related to a collective tragedy that had been buried in the dust. Under the aura of charity, is it hypocrisy or redemption? Where are the former victims now?
In the fog, Lin Ke must find the key thread in the web of lies, otherwise the next time the bell rings, the next victim will die.