A female judge encounters an old teacher who uses the letter of the law to his own advantage while she wields it as a weapon to protect those in need.

Zuo Lin (Lv Jiarong) is a judge serving at the people's court in Mingzhou. While dealing with a real estate case in Yongjia, she butts heads with an unexpected opponent. He is Zheng Huaishan (Tan Kai), an old university teacher and a dear friend whom she hasn't seen in a long time. However, investigations lead them further astray and Zuo Lin has to make the choice of overcoming her personal feelings to uphold justice.