Intercourse: Special Sister-In-Law

Three married women had always been dissatisfied sexually with their husbands, and Hyoji, who recently divorced due to her husband's erectile dysfunction. They gathered after a long time and had a drink complaining to each other, and they received a business card from an unidentified handsome man, saying, "Don't you want to play tteok pounding game?" The four of them head to the meeting place and meet suspicious agents who were waiting for them.

Korea's most popular song writer Hee-soo runs into a nineteen-year-old boy in the elevator. Hee-soo is inspired by a new song watching him shake at her figure. She starts to tell him about women under the excuse that she's teaching him music. They fall for each other but things get complicated when her life teacher, Joon-ho who taught her about life and music comes back.

"Innocent face, D-cup breasts and perfect intercourse skills! Son, this is not your girlfriend anymore but your mother!" Ki-ho brings Yuki from Japan to marry her. However, he starts cheating on her with his ex-girlfriend in Korea. Min-cheol comforted Yuki and thought of her as his daughter-in-law, but one day he realizes he is looking at her as a woman. In the end, Yuki and Min-cheol have intercourse without Ki-ho knowing...

When they were young, Min-joo and Seo-yeon cared for each other and were closer than brothers and sisters. However, she accidentally learns about Seo-yeon's tutor, Woo-hyeon, and because of this man, their 10-year friendship starts to become shaky. Meanwhile, Jeong-soo is hurt in seeing Min-joo like that, and so he distanced himself from Min-joo. Because of Min-joo and Seo-yeon's misunderstanding, Jeong-soo who couldn't care much might just leave so Min-joo tries to break up with the help of Seo-yeon. While in the process of breaking up, Min-joo and Seo-yeon went back to their close relationship. The love of women who have been separated because of man, and the two men's friendship is comically drawn.

A woman finds a man in a box in front of her home and takes him in. She jokingly says she wants to keep him as her pet since the man reminds her of her childhood dog. The man agrees. Later the woman discovers that the man is a dance prodigy. Complications arise when her old flame from college returns.

Eun-sik tries to pass the state exam while studying in college after his military service. One day, he meets a beautiful woman Eun-hyo, and his life changes.

Shin-ah, a free spirit, has an unexpected encounter with Dong-gi, who seeks excitement. After a passionate night, she breaks up with her boyfriend and reunites with Dong-gi when he calls. The two fall madly in love.

Roger Greenberg, a failed musician now making a living as a carpenter in New York, returns to Los Angeles to house-sit for his brother. He's stranded there—since he doesn't drive—until his brother's assistant, Florence, comes to his rescue. She's as much a lost soul as he is, and the pair form a significant connection—giving Roger a much-needed reason to be happy.