Revolving around the crisis of the survival of the century-old teahouse "Yihe Xuan" and the mysterious death of its owner Chen Bo, architectural scholar Lu Yanbai, investigative reporter Xia Ying, and criminal police captain Jiang Tuo were involved in a huge whirlpool that spanned a century. A copper key, an emerald cuff link, a mysterious rosewood chair, a hidden blood contract of three surnames, and a strange tea pet in the cellar with the name of the missing person engraved on it all point to a dark secret buried deep under the foundation of the city. This game involving the grievances of three generations, huge land interests and serial deaths not only tests the courage and wisdom to find the truth, but also tortures the weight of everyone's soul. When the Yihe Xuan, which symbolizes the glory and shackles of the old era, is crumbling in the heavy rain on the eve of demolition, all the hidden past and the sins carried will usher in the final reckoning.
