Zhao Yong runs an appliance repair shop in a residential community. With extraordinary repair skills, he has spent six whole years fixing small household appliances for his neighbors free of charge, never taking a single cent. Unexpectedly, when he refuses to help his unreasonable neighbor, Qian Lanfang, repair and carry a secondhand refrigerator weighing over 300 jin (about 165 pounds) up to the tenth floor for free, she maliciously reports him for operating illegally without a license and posing a serious fire hazard. Zhao Yong is fined 5,000 yuan and ordered to suspend business for rectification. Completely disheartened, he smashes his repair bench that very night and announces that he will never offer free repairs again. In the sweltering summer heat, a voltage fluctuation hits the residential community the following day, causing household appliances in numerous homes to fail all at once.