When bandit Mu Qing kidnaps scholar Bai Xiaosheng to drive away her unfaithful fiancé, she unwittingly brings an undercover agent into her world. Their fragile bond shatters after a deadly ambush reveals hidden betrayals. Reunited later and framed for a crime, the two uncover a corrupt magistrate and work together to bring him to justice.

After his father, Chang’an’s richest man, dies in a political scandal, Li Qixing grows up in hiding and becomes a county magistrate. When a murder occurs in the household of wealthy Yin Susu, the two join forces to investigate, uncovering corruption and intrigue in their city.