Zhou Yuan is a site supervisor at a renovation company. Every month, he hands his entire salary over to his wife, yet one night, he cannot even afford a 20-yuan meal. Just as his marriage reaches its breaking point, a client's home under his supervision suddenly suffers water damage. Without investigating the cause, the manager demands that Zhou Yuan personally pay 120,000 yuan in compensation, while suspending his projects and withholding his wages. Zhou Yuan discovers that the materials used on-site do not meet the standards he originally specified.