Time is the evidence of crime that he buried with his own hands, and it is also the only weapon that can wash away wrongdoings.
On a rainy night, an old friend, a watchmaker, died mysteriously and tragically. The only thing left behind was a rusty pocket watch that was strangely located at "III" and a blood-stained last word: "It has something to do with three years ago." The cold pocket watch was like a death knell, waking up Chen Mo's numb nerves. A cheap button at the scene points to the crazy witness "Sister Hua"; a secret brass gear involves the taboo black technology left by the Nazis - "Heart of Hermes", which is said to be able to distort the perception of time...
