Nothing is more frightening, as the narrator points out, than a ‘time-rich nosy person’. Exhibit A is Ahn Geo-ul, 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.

Marie, an aspiring teacher, meets Luis at a Mardi Gras party. When they end up in bed together, she begins an affair with him, without knowing he is a sex addict. A formal complaint of sexual assault causes Marie to start having doubts about Luis, yet she continues to give in to his desires.

Marie, an aspiring teacher, meets Luis at a Mardi Gras party. When they end up in bed together, she begins an affair with him, without knowing he is a sex addict. A formal complaint of sexual assault causes Marie to start having doubts about Luis, yet she continues to give in to his desires.

Rosalina comes back after her music cruise, but Michel (the French guy Rosalina kissed on the cruise) also comes back, criticizes Nat's music, and kisses Rosalina which Nat sees. This causes a heated fight between Nat and Rosalina in which they break up and Rosalina quits the band.

Kang Chul Soo is an enthusiastic fireman. He poses as a nude model to make money for his sick friend. He is then targeted as the criminal of an arson-murder case that took place 10 years. Kang Chul Soo and mysterious heiress Han Jin Ah try to find the real culprit.