The story of two married couples in danger of unraveling as the husband and wife find themselves attracted to other people. Na Eun Jin is a hardworking, positive, and bright woman who encounters feelings of disappointment because of her cheating husband and other events, which makes her find a new side of herself.
Meanwhile, Yoo Jae Hak is a successful CEO, a respectable father of two sons, and a husband to his devoted wife. He thought he was happy in his life until he found himself attracted to Eun Jin, and then he began to reflect on his life and the conflicts between his responsibility to his family and his feelings for Eun Jin.
