Working overtime late at night, delivery rider Lao Zhou arrives at an office to demand justice over a malicious negative review and refund, then locks the office doors from the inside. At this critical moment, Jin Li, a newcomer to the workplace, remains calm under pressure. She outsmarts her selfish colleagues, who try to shift the blame and make reckless claims, while using conversation to clarify what really happened and secure reliable evidence. Ultimately, the crisis is resolved with the help of security personnel. The malicious scheme is punished, and justice and workers' rights are vindicated once again.