The heroine's private car, which she purchased before marriage, was taken by her younger brother-in-law under the pretense of borrowing it while she was away on a business trip. Her brother-in-law conspired with her husband to steal the vehicle registration documents, forge her signature, and sell the car, replacing it with nothing more than an old second-hand vehicle. Her husband's entire family takes his side, repeatedly using family ties and moral pressure to force her to give in. Calmly gathering evidence, the heroine hires a lawyer, fights for her rights, and reports the crime to the police. In the end, both her brother-in-law and husband are punished by law. After divorcing her husband, she sells the vehicle involved and finally breaks free from her parasitic family, beginning a completely independent new life.