Business Trip Assistant

An erotic film about the relationship between a man and a woman who have become estranged from each other and the people around them.
Hye-yeong and her husband are a sexless couple. Her husband is having an affair with Jae-kyeong, Hye-yeong’s best friend. Meanwhile, Hye-yeong has an affair with an invited man introduced by her husband. Her husband feels excited about filming her wife’s sex video with another man. Later on, Jae-kyeong suggests to Hye-yeong and her husband that the four of them, including the invited man, have a hot sex party together.