Meeting in an unfamiliar place
In Su (Bae Yong Joon) heads for Samcheok upon hearing the news of his wife Su Jin's (Lim Sang Hyo) car accident. As his wife undergoes an operation in a hospital along with Kyung Ho (Ryu Seung Su) who was also in the accident with her, there he meets Kyung Ho's wife Seo Yeong (Son Ye Jin).

The trusted love crumbles
While Su Jin and Kyung Ho struggle to gain back their consciousness due to serious injuries, In Su and Seo Yeong find out their respective spouses had an extramarital affair together. The trusted love changes into confusion, anger, and feelings of betrayal and heartache.

Fall in love like they did
In Su and Seo Yeong start their long-term stay at a local motel to be by their spouses' sides. As the two pass each other by often at the motel and the hospital and spend more time with each other, they realise that they share the same kind of sadness and pain. And before they know it, they fall uncontrollably in love and end up in the same situation as their spouses.