It tells the marriage and love story of three sisters of the Gu family. The eldest sister Gu Simei is beautiful and passionate. Although she is the mother of two children, she has always been dissatisfied with her marriage. By chance, she met a man who was five years younger than herself. When she desperately ran towards her love, she was threatened by the deputy mayor who had long been interested in her. In order to protect her young lover, she went to the meeting alone, but did not want to get into a life-threatening lawsuit. Unexpectedly, her defense lawyer was her...