Migrant worker Fang Zheng notices suspicious behavior from his contractor, who possesses a set of bank account numbers remarkably similar to his own and takes the opportunity to confiscate his ID card. Being on his guard, Fang Zheng quietly goes to the bank to cancel his account. After problems arise with the distribution of project wages, the contractor produces fake transfer screenshots to mislead fellow workers, pointing the finger at Fang Zheng. Faced with everyone's doubts, Fang Zheng produces the account cancellation certificate to prove his innocence. As multi-party verifications and investigations unfold, layers of suspicion are unraveled one by one. Fang Zheng collects complete clues and relies on legitimate channels to protect his own rights and interests alongside those of his fellow workers.