Yongju Valley

Couple Soo-ji and Sang-min, who once lived next door, and Soo-yeon who experienced having an affair, spends a moment of confusion due to Soo-ji's sudden death, and now lives a normal life with her husband Dong-seok. Then one day, Dong-seok gets into a parking dispute with Mi-ran, a newly-married couple who moved next door, and Soo-yeon is embarrassed to learn that Mi-ran is the female junior who once had lesbian tendencies towards her in college. Two couples living next door and getting close. Unlike before, Mi-ran has become a lawyer and ignores Soo-yeon. Soo-yeon gets angry. Meanwhile, Soo-yeon found out that Mi-ran's husband, Seok-ho, is a stay at home husband, and Soo-yeon who is in the same situation is attracted to him.

Bar examiner Yoo-jeong likes sex more than studying. Thanks to the secretive, but erotic tutoring by the teacher her boyfriend introduced to her, Yoo-jeong’s grades shoot up. Yoo-jeong’s mom, Mi-jin, however, feels attracted to her tutor and starts seducing him.

A young wife heads to her husband's office where the unexpected ensues.

Newly married couple Eun-mi and Seong-soo look ordinary, but they both have their own secrets. Eun-mi enjoys calling her boyfriend to her home while her husband is away on work and Sung-soo enjoys watching his wife have sex with other men through the CCTV in his house. Not being able to get over the excitement he feels by doing that, he tells his wife everything and suggests she has sex with another man again...

A bar exam student and the tutor relieve each others' sexual passion and love

Woo-seong is an interpreter who sleeps with his girlfriend to relieve stress. One day a work call brings him face-to-face with a woman from his past, which tempts him beyond self-control.

Three men and women start living together. Byeong-soo is chosen in a scenario contest and is picked to write a script for a movie, so he leaves the noisy city and moves in with his married senior from school. At the house is Ji-eun, the senior's wife and a young and sexy Bo-yeong. The three living together leads to some risky situations!

Tae-soo is getting ready for a job in a single room that isn't soundproof and ends up calling his university senior, Woo-seong. Woo-seong recently hit the jackpot with stocks and is running a share-house near Seoul. Tae-soo explains his situation to Woo-seong and Woo-seong welcomes him to his home. When he arrives, he sees a naked woman and mistakes Bong-soon for his senior's sexy wife...

Thyssen, as well as a friend, is an "older sister" of two women, Su Min and So Ra, both decide to work first, as a result, do not have time for long - lasting relationships, which causes many sexual adventures and always that can meet - If to tell this adventures. So far, a man as one of the three interested, this would be the "ideal home" from then on each by itself ...

Hwa-jeong and Geon-woo are getting married soon. Geon-woo introduces his friends, Jae-kyeong and Yi-soo, to Hwa-jeong. After a few drinks, everyone goes to Yi-soo's house for a second round. The party ends late at night and Jae-kyeong, who is a lightweight, staggers to the bathroom. He then mixes up the rooms and falls asleep in the room Hwa-jeong is sleeping in. By accident, Jae-kyeong ends up sleeping with his friend's bride.

Chief Park imagines going wild with Ga-hee while she thinks he's weird. One day, Chief Park leaves early and she has sex with Woo-jin, a colleague she's secretly seeing. A while later, Chief Park opens the door...

The story of an explicit relationship between a man and his sister-in-law.

Da-hyeon and Hyeon-soo grew up like sisters without their parents, and still live together even after Da-hyeon got married. Sex isn't good between Da-hyeon and her husband, so when her husband is out, she has an affair with a stranger. One day, Hyeon-soo's step-father, Seok-hyeon, goes to his son's house and sees his son's wife's sister there all by herself...

Eun-mi and her husband have been married for 5 years, but they rarley have sex. Eun-mi goes through her SNS one late night and finds a post about 'invitation girls'. After thinking about it for a few days, she signs up for it and gets invited by Hyun-ji and her husband for a new and stimulating experience. Eun-mi shared her experience with her husband and 'swaps' with Hyun-ji and her husband....

The more stealthily you do, the more you are drawn into… Soo-yeon lives a dull and boring life daily because her husband is always busy with work and goes fishing when he is not working. One day, Soo-ji, one of her high school friends moves to the house next door. When Soo-yeon happens to watch sneakily Soo-ji and her husband Sang-min having sex, her desire becomes so strong that she becomes to have hard time trying to suppress it. Soo-yeon ends up having passionate sex with Sang-min one day when Soo-ji is away on a business trip. That night, as Soo-ji spots Soo-yeon and her husband getting out of a car together and her husband being sweet with her, Soo-ji becomes suspicious of an appropriate relationship between the two. Next day, when Soo-ji asks Soo-yeon to meet her outside, Soo-yeon reveals a shocking story to her.

Won-gi lost his wife a long time ago and is running a pension outside of the city. Then one day, Won-gi's daughter and her friend Se-yeong stays in the pension during a break from their school in Seoul. However, Won-gi finds himself attracted to the friend who is so much like his dead wife. Then he crosses a line that he shouldn't have crossed...