Cai Zian's family was poor and took refuge in Cui Miaolan's family, but his fiancee's stepmother Li refused and designed to sever the marriage relationship. Zi 'an got to know Su Dingming, who works in Suzhou, and got to know him. Unexpectedly, Su Dingming died of a sudden illness, and Zi An had no choice but to be an impostor. Cui Miaolan was forced to remarry Wei Fu. On their wedding night, Miao Lan stabbed the villain Wei Biao and was sent to the government for interrogation. The county magistrate took bribes and perverted the law and sentenced her to "kill her husband." Cai Zian publicized his personal anger, hastily closed the case and sent Cui Miaolan to the frontier. On her way to the frontier, Miao Lan happened to meet her father Cui Guangxiang, who was an official in North Korea. After Cui Guangxiang understood and knew the situation, he approved the retrial of the case in Suzhou. After retrial, the truth came out. Cai Zian and Cui Miaolan confessed their differences and the husband and wife made up.