Female litigator Shen Yanqiu was expelled from the capital because of her father's unjust case of "collaboration with the enemy and treason." After five years of dormancy, she returned to the court as a "counsel", but was involved in a serial murder case involving three dynasties. In the process of solving the murder case, she not only had to deal with the powerful Zhenguo government, but also faced the constant pressure of Xie Jinglan, an old friend who "framed" her father and now the minister of Dali Temple. As the clues deepen, Shen Yanqiu discovers that all the cases point to the truth about her father's unjust case, and every time she "searches for the truth", she changes the balance of power in the court, and may even make herself the next victim. When personal obsession, family honor and disgrace, and court structure are intertwined, is "seeking the truth" the only justice?