Single mother Lin Jing, along with her elderly mother and young son, exhausted her savings to buy a school district apartment in full. Unexpectedly, right after moving in, malicious neighbor Li Cuie came to make a scene, frantically pressed the access control at midnight, falsely reported a fire, and even spread rumors for cyberbullying, attempting to force her to sell the property cheaply at a low price. Lin Jing refused to compromise, dug deeper and discovered it was actually a habitual black industry where Li Cuie and her real estate agent son Wang Wei teamed up for 'forcing housing for arbitrage'. Facing continuous harassment, Lin Jing calmly laid out a plan, intelligently gathered evidence, and finally brought a complete evidence chain to publicly expose the evil deeds, sending the mother and son suspected of extortion to court, turning the tables to guard her own home.