Plot
Heo Soon-ae is a 40-year-old homemaker devoted to her pilot husband Yoon Il-seok, their son, and Il-seok's mother who lives with them. But one day Soon-ae discovers that her husband has been cheating on her with a 28-year-old flight attendant, Han Cho-eun. Cho-eun confronts Soon-ae to convince her to divorce Il-seok so she can take her place. The two get into a car together and drive towards the airport where Il-seok is due to arrive from a flight; the plan is to show up in front of Il-seok together and ask him directly who he wants to be with. The plot turns supernatural, however, when the two women fall victim to an accident that switches their identities; Soon-ae becomes trapped in Cho-eun's body, and vice versa. Since they can't seem to change back the two must learn to live in each other's body, posing as the other woman.
