In Yunhai City in the 2000s, renowned detective Zeng San is determined to revive his agency. He takes on the case of the wealthy Mrs. Li Mengqi’s stolen jewelry. At a banquet, he shows off his detective skills, only to hit a dead end. Then fate takes a turn: he meets Lin Mei and invites her to join him. Together, they overcome one obstacle after another and expose Wu Di’s false testimony, forcing him to confess. Zeng San and Lin Mei carry mysterious pasts, yet are deeply devoted to their work as detectives. They resolve to build the Mingzhen Agency, fearlessly pressing on and relentlessly seeking the truth in this glittering, fog-shrouded city. They are determined to carve out a place of their own and weave a gripping detective legend.
