Former forensic doctor Lin Yan went to the Zhongming Pavilion in the mountains because of an anonymous letter with a photo of a hand bone attached to an unsolved case. There are many clocks in the museum, but the time is out of order. The owner Shen Jingyan was suddenly murdered in a secret room, which implicated the murder of the owner Shen Henian twenty years ago and the secret of antique smuggling. With the corpse of the housekeeper and the appearance of the mysterious masked man, mysteries such as Su Wan's search for his father, Jiang Zhe's revenge, and Chen Mo's life experience are intertwined. Clues such as the smuggling list hidden in the enamel clock and the corpse hidden in the mezzanine of the bell tower emerge. In the end, Lin Yan uncovered the mechanism of the clock, uncovered the mastermind behind it, and uncovered the grudges between two generations. The Bell Hall finally became a warning museum, and truth and justice were finally revealed.
