Lin Zhi and her family have long been plagued by objects falling from the apartment above, with the danger growing ever closer. In her previous life, she kept giving in, only to have her neighbor turn the tables and blame her. She was attacked by public opinion and lost her job. Given another chance at life, she refuses to put up with it anymore. She immediately gathers evidence, calls the police, demands that the property management register her complaint, and uses surveillance footage and recordings to lay out the facts one by one. When falling debris finally injures her neighbor, responsibility can no longer be concealed behind appeals to personal relationships or a carefully crafted public image. Armed with evidence, Lin Zhi makes everyone responsible answer for their actions. Throwing objects from high-rise buildings is never merely a domestic matter; safety and justice must be determined by the facts.