Season 1
Cha Ju-hyeok works at a bank and has been married to Seo U-jin for five years. When a strange incident happens one day, Ju-hyeok makes a decision that impacts his life and those around him in unexpected ways. Suddenly, the life he had with U-jin and his best friend, Yun Jong-hu, is gone, and he is leading a very different life. How will his first love, Lee Hye-won, factor into his new life? And will it be possible to get his old life back?
01 Episode 1
1h 16mCha Ju-hyeok and Seo U-jin lead an unhappy marriage as busy working parents. One day, Ju-hyeok is handed something special.
2018-08-01 8.3
02 Episode 2
1h 8mJu-hyeok secretly buys a new video game console knowing that he's dead if U-jin finds out. Later, he returns to the mysterious toll booth.
2018-08-02 8.7
03 Episode 3
1h 12mJu-hyeok wakes up in a different house and lying next to a different wife. U-jin picks up a stranger's phone and tries to return it.
2018-08-08 8.3
04 Episode 4
1h 10mWhen U-jin begins her new job at the bank, Ju-hyeok tries to have her transfer to another branch. Lee Hye-won's behavior upsets Ju-hyeok's parents.
2018-08-09 8.7
05 Episode 5
1h 12mMeeting U-jin's mother startles Ju-hyeok, who finally learns about her condition. At the bank, U-jin is put in a potentially dangerous situation.
2018-08-15 9.0
06 Episode 6
1h 11mAfter confessing his feelings to U-jin, Yun Jong-hu volunteers to join her on an overnight work trip. Horrified, Ju-hyeok follows them.
2018-08-16 8.3
07 Episode 7
1h 8mA surprise visitor comes to the bank looking for Ju-hyeok. The three friends agree to go on a getaway together with their partners.
2018-08-22 8.3
08 Episode 8
1h 5mJu-hyeok wants to return to the way it was, but it may be too late. When her mother goes missing, U-jin is overcome with worry.
2018-08-23 9.0
09 Episode 9
1h 4mFinding out about Ju-hyeok's lie infuriates Hye-won. Meanwhile, a malevolent post is written about U-jin on an online community.
2018-08-29 9.0
10 Episode 10
1h 5mAfter a fight with Ju-hyeok, Hye-won takes drastic action. U-jin and Jong-hu's co-workers find out about their relationship.
2018-08-30 9.0
11 Episode 11
1h 13mU-jin has something to say to Jong-hu, who later overhears a conversation that stuns him. Hye-won sees the real Jung Hyeon-su.
2018-09-05 8.7
12 Episode 12
1h 9mThe truth about her unusual connection with Ju-hyeok becomes clear to U-jin. At work, a sudden emergency places Ju-hyeok at risk of losing his job.
2018-09-06 8.7
13 Episode 13
1h 8mFinding himself back in 2006, Ju-hyeok tries all he can to avoid U-jin. When they wake up in the present, life has changed again.
2018-09-11 8.0
14 Episode 14
1h 5mTo Ju-hyeok's distress, U-jin returns to the bank. While she wants to make things work, he remains adamant about pushing her away.
2018-09-12 8.3
15 Episode 15
1h 12mWhile sneaking around their co-workers on a date, U-jin runs into her charming first love from her university days and makes Ju-hyeok jealous.
2018-09-19 8.3
16 Episode 16
1h 4mThree years later, Ju-hyeok and U-jin have come full circle — with revisions. Hye-won shows up at a university club reunion.
2018-09-20 8.3
Who is in it
Ji SungCha Ju-hyeok
Han Ji-minSeo U-jin
Kang Han-naLee Hye-won
Jang Seung-joYun Jong-hu
Cha Hak-yeonKim Hwan
Son Jong-hakCha Bong-hee
Park Won-sangByun Seong-u
Kim So-raJu Hyang-suk
Lee You-jinJung Hyeon-su
Park Hee-bonCha Ju-eun
Lee Jung-eunU-jin's mother
Oh Eui-sikOh Sang-sik