옆집부부와 차도 같이 타고, 다른 것(?)도 타는 커플들! 대성과 정원은 결혼 2년차 부부다. 친하게 지내는 옆집 부부와 출퇴근 카풀을 하고 있다. 옆집의 우성과 태희는 서로의 사생활에 간섭하지 않는 자유로운 부부다. 그런데 사실 이 두 커플은 차만 같이 타는 것이 아니라 서로 상대방아내를 공유하며 섹스까지 즐기는데…
Director...do you know about my husband's promotionThe section heads of a planning office Ji Hyeon-woo and Jang Myeong-soo get told by Director Han that one of them will have to leave the office if they fail to get promoted. Rumor starts to spread that Jang will lobby Han into his promotion by using his weakness of women. Hyeon-woo is anxious. He tries hard to appeal to Han but doesn't really cause much influence so he calls up his ex-girlfriend Ji-hyeon. He calls Han to his house and introduces him to her. Han is completely head over heels for the sexy and seductive Ji-hyeon.Meanwhile, Hyeon-woo's wife is upset because he blamed her for not getting his promotion, so she goes to 'talk to' Han herself...