After a three-day business trip, Li Nian discovers an old car worth 56,000 parked in her parking space. Her mother-in-law says they exchanged the cars, her brother-in-law claims it was a trade-in, and her husband insists that family members shouldn't keep such close accounts. Her 400,000 car was transferred through forged signatures and hastily sold to pay off debts, without a single cent reaching her. Everyone assumes she has no family to back her up. She doesn't argue. Instead, she quietly gathers surveillance footage, transaction records, audio recordings, and dashcam footage, assembling nine pieces of evidence. When her in-laws kneel and beg her to stop, she gives them just one answer: Return my car and settle every account.