Lin Lei, a senior engineer, is framed by his boss, Zhou Zhiyuan, and forced to take the blame for an engineering problem. Not only is he maliciously fired, but his unpaid salary and remaining project payment, totaling 50,000 yuan, are also withheld. Zhou Zhiyuan then spreads rumors about him throughout the industry, blocking every opportunity for him to find another job. Faced with overdue mortgage payments and his daughter's urgently due school fees, Lin Lei puts aside his former dignity, puts on a delivery uniform, and works tirelessly delivering food to keep his family afloat.