Best friends Jang-won and Choi Min and his wife Eun-hye make a bet to overcome their boring lives. They risk their lives to go after the married woman who is well known for her chasity. However, the bet goes the wrong way and they learn what real love is...

Hee-ran was a karaoke mistress when she first met Se-min through a marriage consultant company. He suggests they should have a contract marriage; she would get paid every month for being his wife and Se-gyu's mother. Hee-ran thinks this is a good deal but unlike her thoughts, being married is boring. Se-min only needs her at night and Se-gyu has a crush on Hee-ran who is like an older sister but hides it by being nasty. One day, Hee-ran meets Se-min's friend Tae-yeong and falls for him. In the end, Hee-ran and Se-min break up...

Kim Seon-ae works at the AIDS Research Laboratory, Jang Mi-joo works at a nooky establishment and Han Seong-ae is a psychiatrist. Seong-ae talks to single men about sex and is responsible for her friend Seon-ae's hypnotic treatment. One day, Seong-ae hears something shocking about AIDS during therapy... Seon-ae shudders at the mention of men and doesn't want anything to do with them. Seong-ae tries to treat this woman hooks her up with Jae-san at a club. Mi-joo is pressured to perform oral sex in order to marry Jae-seon as she is bad-off and survives every day by working at the sexual establishment. Mi-joo had lied about her family being well-off and when Jae-san asked to visit her home, she became surprised. She calls Seon-ae who she doesn't usually call and asks her for a favor. Seon-ae meets a man for the first time at a club!!! Mi-joo can't refuse anything her boyfriend asks for! Same goes for Park Jae-san. The three of them are out for trouble...