Cheng Ye, an ordinary working man, unexpectedly discovers that his electricity bill has skyrocketed. After investigating, he learns that his neighbor, Wu Dongsheng, has secretly connected to his power supply to run commercial freezers. Not only does Wu Dongsheng refuse to admit wrongdoing, but he also fabricates losses worth 100,000 yuan and tries to extort Cheng Ye. Gathering evidence and pursuing justice step by step, Cheng Ye unexpectedly uncovers a corruption case involving 120,000 yuan in property management maintenance funds. Working with the police, he exposes the truth, ensures the culprits are punished by law, and protects his own legal rights as well as those of the other residents.