When delivery worker Jiang Nan went to collect his demolition payment, he discovered that his account had been transferred away by a stranger. The other party impersonated his parents and younger brother, using forged documents to process the transfer. Jiang Nan presented an orphanage certificate to expose the scam, the bank froze the funds and called the police, and the scammer couple was arrested. Afterwards, the scammers' son and another woman continuously harassed and threatened him, but Jiang Nan calmly responded and preserved the evidence. Ultimately, he gave up his wealthy family inheritance to protect a friend, and donated his savings to the orphanage that raised him.