After divorce from her husband, Na-yeon, who lived with her son Dong-jin, suffered from a business failure. At the request of a junior democrat who has nowhere to go, four people live together for a while. Hyung-cheol tries to sex with Min-ju, but is rejected. Hyung-cheol, who is idle without knowing the date, is dissatisfied, I'm going out saying I'm looking for a job even by myself. There are only Nayeon and Hyungcheol at home. Nayeon takes a shower while Hyung-cheol is sleeping and masturbates while thinking of Hyung-cheol. Hyung-cheol woke up thinking that the moaning in the bathroom was democratic. Nayeon is surprised to see her masturbating, but she cannot overcome her excitement and attacks her. When the two sexes were in full swing, Min-ju, who came back home, sees it. That night, he goes to Dongjin's room and tells the truth...

Ji-cheol is a job seeker who only plays and eats, and is the boyfriend of Eun-je who runs a small store. Meanwhile, Joong-hoo, a hikikumori, became a regular after accidentally seeing Eun-je in the store. She is mistaking her kindness for her affection for herself. Joong-hoo started stalking her SNS every day. In the end, after approaching Eun-je with an innocent face, he succeeds in locking up Eun-je. As Eun-je disappears and the money supply is cut off, Ji-cheol is eager to find Eun-je. Ji-cheol, who is sad about money rather than worrying about Eun-je's safety, tries to lure Mi-seon out of her pocket money. Eun-je, who saw the scene of these two people's affair through a hidden camera, disarms Joong-hoo while drinking with him, thinking that she should somehow get out of there. Eun-je eventually escapes. Feeling empty without Eun-je, Joong-hu confines Mi-Seon, who ignored him. Three months later, someone came to Joong-hu's house and then…