Office Sex 2021

Film producer Na-eun and director Yeong-tae are on the verge of shelving out cash for an adult film production. They're too busy blaming each other for the messed-up filming. Before another filming begins, Na-eun suggests Yeong-tae to become an actor himself and practice filming. Na-eun leads the shy Yeong-tae very skillfully. How far will the practice go...?

Min-ji is sick and tired of her boring housewife life and unhappy marital relationship. Her friend Hye-jeong lives the exact opposite. She envies Hye-jeong like that. Min-ji who is frustrated with her desires, starts to notice Sang-soo, Hye-jeong's husband. Min-ji approaches Sang-soo while Hye-jeong is not at home, and Sang-soo starts to worry about Min-ji. Will the two men and women be able to enjoy the secret meeting without getting caught by their husbands and wives?

Tae-jin and Hye-jeong sense that there is a problem with their relationship so they decided to have a sex consultation to solve their problem. Sang-soo, who came to the sex consultation, suggests a solution for the couple. At first, they were embarrassed and awkward, but they accepted the sex advice to improve their marital relationship.

Young and handsome boyfriend, Tae-ho, and her married girlfriend, Heo-jin were having sex in a motel when her husband Won-jae suddenly surprises her on the spot. Won-jae's obsession and madness with his unfaithful wife became more concrete through the problem solver Na-ri, eventually leading him to kidnap and detain his wife and make Na-ri seduce his wife's boyfriend Tae-ho into bed.

Heojin, who wants to swap, takes her husband, Wonjae, and goes to a pension with Nari and Taeho. Two couples swapping partners and enjoying swapping. Her husband Tae-ho, who was passive at first, rather enjoyed her after seeing him, but her heart is upset.