Introduction: Lawyer Wade received a commission for a death penalty review and met Lewis, a death row inmate in his twilight years. Unexpectedly, Lewis seemed to know him and asked him to pick up something from somewhere. He also vowed that they would keep in touch later.However, Lewis was executed not long after. Wade wanted to forget about it, but he went to the place Lewis told him without anyone noticing, and got the ancient music box and notebook Lewis left for him.Through the drawer of the music box, Wade actually got in touch with Lewis, who was still alive fifteen years ago, and a journey of chasing the murderer in a dislocated time and space began....