In the twenty-three years of the Republic of China, the world was turbid and strange things happened frequently. People in a remote town disappeared mysteriously one after another, but the bodies appeared on their own in the middle of the night with a strange smile on their faces; heart-rending wails came from the century-old house every midnight, and no one who entered the house survived; nursery rhymes that had been passed down for centuries suddenly sounded throughout the town, and the singer disappeared, and the listener was bound to suffer misfortune. No one knows that behind these horrific events lies a curse and conspiracy that spans decades. He walks in the gap between day and night, and is used to seeing ghosts demanding lives and ancient artifacts appearing. With his special skills and extraordinary courage, he has faced scalp-numbing horror scenes again and again. From fog-shrouded desert villages to eerie foreign-concession houses, from murderous shadow puppets to soul-devouring ancient mirrors, every investigation is accompanied by a life-and-death crisis, and every truth subverts cognition. When strange events intertwined one after another and the mysterious organization behind them gradually surfaced, he discovered that all this had been doomed for a long time, and he was the key to breaking his fate.