Do you want to do it... The fatal seduction of...the Challenge Game Florist Ae-ran (Vicky) and forensics investigator Min-ho (Choi Ryeong) from the Public Prosecutor's Office both have a family that everyone wants. However, Min-ho can't handle bed time so Ae-ran starts a 'challenge game' in which she seduces and has sex with strange men. One day, Ae-ran and Min-ho meet Alex (Choi Hyeon-ho) at a tango cafe. Alex is interested in Ae-ran and approaches her while Ae-ran takes interest in Alex who is more handsome than her husband. Min-ho later witnesses them in action and gets angry when he finds out the man Ae-ran seduced is Alex. Min-ho feels nervous because he finds out Alex isn't just a game partner and approached him for a reason. Min-ho tries to get rid of Alex but Alex chokes Ae-ran and Min-ho even more and feels catharsis. The game they started is turning into a catastrophe...
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…