Lin Jing lives alone in an old-fashioned apartment and has paid the heating bill in full for five years. Her neighbor Wang Guifen teases her as a "taken advantage of". After Lin Jing caught a bad cold, she no longer tolerated it and took advantage of the summer decoration to install a high-grade insulation layer to completely block heat leakage. After winter, the water pipes in Wang Guifen's home froze and burst, flooding the downstairs. Instead, she complained to Lin Jing and harassed her. Lin Jing took out the surveillance and chat records to expose his evil deeds in front of neighbors and property owners. In the end, Wang Guifen and her son were forced to sell their house and move out due to compensation and loss of reputation, and Lin Jing regained peace.
