Jiang Yu specializes in handling marital separation petitions for women and is known as the capital's number one marital separation expert. A bizarre unresolved case involving marriage records leads her to enter into a contract marriage with Xie Huaijin, a Junior Minister of the Court of Judicial Review. Together, they infiltrate the secretive Hejin Society to investigate the mysteries surrounding the red marriage contracts. As danger closes in at every turn, the two cautiously test each other's intentions and uncover the buried tragedies of two generations of women. Amidst the shackles of oppression, they fight for everyone's right to be born free and in control of their own lives.