Min-hwan, who lives with his brother, was lovers with his youngest sister-in-law. The sex continued even after she married his brother. Eun-hye, who is seeing elder men behind her boyfriend’s back, goes to Min-hwan’s house one day, and is surprised to see Min-hwan’s brother. The elder man she’s meeting in Min-hwan’s brother.

Ji-hyuk, who succeeded in finding a job with difficulty, from the first day at work faces a crisis in the elevator where he is sexually harassed. Glamourous team leader is trying to catch Ji-hyuk’s weakness.

Ba anh chàng trong lúc uống với nhau đều cho rằng vợ mình có kỹ năng mát xa rất đỉnh.Để kiểm chứng, họ đã quyết định đổi vợ cho nhau để kiểm tra vợ ai có kỹ năng cao hơn .