A drama about a couple's marriage being threatened by them falling in love with other people.

Geum Hee has been married to Joon Ho for the past 10 years. She supported him while he was attempting to become a plastic surgeon. He is now a successful plastic surgeon. They are still happily married, but Joon Ho happens to meet divorcee Sang Mi. Sang Mi wants Joon Ho regardless if he is already married. Meanwhile, Sang Won is a chef and the younger brother of Sang Mi. Due to his painful memory of being dumped by the woman he loved, his personality seems to have become cold. He actually still has a warm heart.