One night after a busy work day, Min-ji, a shop manager in a department store mistook a man for sexual harassment and reported him to the police, when he only wanted to return her wallet. In the wake of this incident, the elementary school teacher Kyeong-ho, lost his life completely and is wiped out of his memories of Min-ji and of the world he's living in. Two years later as Min-ji prepares to marry her fiancé Hyeon-woo, she has been mysteriously kidnapped and the man said, "If you remember my name, I will return you back". Min-ji recalls him from the past, but cannot remember the name, Kyeong-ho, who was been demonized due to her carelessness. Min-ji tries to escape Kyeong-ho's cruelty which is getting worse as days went by. In the process of finding Min-ji, Hyeon-woo is shocked to learn about her promiscuous past. Can Min-ji escape Kyungho's grip and return safely to Hyeon-woo's arms?

Min-soo and Yoo-ri talk about marriage while they are on a date. Yoo-ri goes back home and tells Jeong-hee about marrying Min-soo but Jeong-hee is shocked as she has a crush on him. She has a drink with Sung-hoon and gets drunk telling him about the soon-to-be married couple. Sung-hoon who has a crush on Jeong-hee, has drunk sex with her. Jeong-hee is confused the next morning and runs into Min-soo who happens to be home. Jeong-hee realizes the fun about sex and slowly starts to be obsessed with Min-soo. Min-soo can't turn her down and Sung-hoon finds out...

Darkness falls on the city and their time begins again. Karaoke helpers who entrust themselves to the black Starex and become lovers of men who are weary of the world. Their second story, which shines brighter than the twinkling neon signs on the drunken night street. Jung-in, who has started working again, vows that she will no longer be dragged around by her sidewalk girls. However, contrary to her determination, her heart is shaken by the sad stories of the girls. She eventually decides to get the girls who are being exploited under her boss.

I was once a novelist who was looking forward to the future, but now I am living in a house that is just a handful. I have to write, but the enthusiasm for writing has long been lost. One day when I was bored every day, my friend (Jane) of Sukjep (exponent) comes home. Jane pulls the hair out of her face with a sweaty face on a hot summer day and sits on the front door. When I saw Jane who seemed innocent and innocent and sexy, my heart was rocked ...

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...

Old friends Yoon-soo, Jong-gyoo, and Jin-gyoo reunite after a long time and share drinks while catching up on each other's lives. Yoon-soo, who is married to Ji-soo, confides that he's been struggling with issues in his sex life with his wife. Jin-gyoo reveals that he broke up with his girlfriend, Mi-kyeong, because their sexual desires didn't align, and he now satisfies his needs at karaoke bars, massage parlors, and similar venues. As the three friends get tipsy, they decide to have a wild night at a room salon. Thanks to the tips he picks up there, Yoon-soo is able to improve his marital sex life. Encouraged by this, his friends begin visiting room salons more frequently.

Hyun-jin is always frustrated with his wife who always refuse her, saying she's tired. One day, Hyun-jin drinks with his friends, Min-seok and Jin-gi, and got a massage together per Jin-gi's suggestion. But then, he falls in love with the special service, and after that, Hyun-jin goes back to the massage parlor whenever he has time...

Sin-wook and Dong-soo have been friends since they were kids. Sin-wook and his wife swap partners with Dong-soo and his wife. They start playing Strip Go Stop and the game gets serious. The four of them have sex, but they end up falling for each others' wives and husbands and even meet in secret. One day, when their sex life reaches its peak, Sin-wook's wife, Yeon-hee, gets pregnant, not knowing whose baby it is. Her relationship with Sin-wook is on thin ice and then the baby is born. They do a DNA test to find out who the father is.