Nothing is more frightening, as the narrator points out, than a ‘time-rich nosy person’. Exhibit A is Ahn Geo-ul (Gyeong Su-jin), who commits herself to social justice causes with terrifying tenacity. After temporarily renting a unit in the Baek-sae Apartment building, she discovers that a loud, hard to locate banging noise occurs from 4am every night, making the residents’ lives an insomniac hell – and so she determines to engage in her own disruption and to find the culprit of this acoustic assault, simultaneously eliminating her eccentric neighbours as suspects, and recruiting them to her cause.                                                                    　　Focusing on a woman who is an unstoppable force for good, it is also a plea for community cohesion and solidarity.“哦，滢滢。”于宏城正一个人在花园里收拾着花草，他每天也就是喝喝茶，看看报纸，要不就是在花园里修剪修剪花草，一接到秦雅滢的电话，他倒是有些意外。