At the blind date table, a fake bill of 300,000 yuan was thrown in front of him. A "wife" appeared out of thin air, a well-designed blackmail. There was only a scrawled signature on the bill, no ID number, no payment method, no execution signature—all loopholes. He pushed away the bill and picked up his phone, not to pay, but to call the police. The other party on the blind date that day, lawyer Jiang He, was keenly aware of the suspicion. Starting from a forged signature sheet, the two followed the clues and uncovered the personal information reselling network behind the blackmail. From the beauty salon manager to the matchmaking aunt, from the deputy secretary-general of the association to the cross-provincial black industry group, he calmly collected evidence and fought back step by step.