A company employee who went to deliver goods at his president's request secretly sees the president's wife masturbating out of loneliness and takes a video of it. She may be distressed when she is caught by her husband's employee, but she becomes more attached to a man who is more compatible with her than to a husband who is not interested in her, and she keeps thinking about that man.
Eight men and women flocked to a pension and gathered to appear on a blind date entertainment program. They gather at the pension for four days and start dating different people to find the right match for each other. They are called No. 1, No. 2, No. 3, and No. 4 rather than their actual names, and they go on dates to find the right match for each other.
An unemployed man. The man has no money and ends up staying with his married older brother's house. His sister-in-law feels sorry for him seeing only playing at home. A man who always watches his sister-in-law's thoughts and actions. Then one day, he found out that his sister-in-law was having an affair and cheating on his brother!! He threatens his sister-in-law about what he found out, so she asks him to keep it a secret and tells him that she will grant all his brother-in-law's requests.
Ye-ra, who is known as a good masseuse in her neighborhood, lodges at the house of her older sister, Se-eun. Her sister's husband, Hyeok-goo, who was one of her regular customers, targets Ye-ra, but she puts up an impregnable defense. Meanwhile, due to the financial problems of her older sister, Ye-ra recommended Se-eun for a part-time job as a masseuse. Eventually, Se-eun attracts customers with her extraordinary hand skills and soon challenges her to run a new massage business.
Seong-ae, who was innocent as a child, had her first relationship with Geon-woo, who was a jobless gangster in the neighborhood. Seong-ae, who was curious, opened her eyes to sex after having a relationship with her brother. As an adult, Seong-ae looks ordinary and plain on the outside, but perhaps because of her experience with her first man, her sex has become rougher since then. During her school days, she was tricked by her best friend, Yoo-ri, into stealing Geon-woo, and eventually, the two are now married. However, Geon-woo still meets Seong-ae from time to time secretly without Yoo-ri's knowledge and enjoys sex. Meanwhile, Yoo-ri also enjoys secret sex without her husband's knowledge with Myeong-jin, a junior at Geon-woo's company. Later on, Yoo-ri becomes tired of Myeong-jin, introduces him to Seong-ae as patronage, and tells them to enjoy sex. Seong-ae, who knows but is deceived, begins to expose the relationship between Gun-woo and Yoo-ri to the world.