偶然间彼此的妻子和工作的民浩和工作。时间越来越两个男人都是朋友的妻子肉体吸引自己的发现。因为苦闷的民浩面前正是与众不同的提案。“你知道，就不要跟贴，一起幸福！“现在我的两夫妇的热交换开始...

Min-ho and Jeong-il end up working with each other's wives one day. As time passes, the men feel attracted physically to their friend's wives. In the end, Jeong-il suggests to Min-ho, "Let's not take sides and just be happy as the four of us!" They start swapping each other.