Cha Su-hyun (Song Hye-kyo) is a CEO of a hotel who has never lived her life according to her own choices, while Kim Jin-hyeok (Park Bo-gum), who has a free and bright soul, lives a happy and cherished ordinary life. They begin a touching romantic story after an accidental encounter....

"Familiar Wife"，a fantasy romantic drama, is about the five-year couple, Joo Hyuk and Yu Jin. Due to the unexpected event that could change his fate, Joo Hyuk went back to the past and made a different choice, which changed the whole life of them both....