

The One and Only
2021-12-20 · 65 min / episode · ★ 6.8
A contract killer gets entangled with a murder case and three terminally ill women who have each decided to end the life of one person before they die.
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Production details
- Creators
- Moon Jung-min
- Production companies
- KEYEAST, JTBC Studios
- Countries
- South Korea
- Status
- Ended
Top Cast
Ahn Eun-jinPyo In-sook
Kim Kyung-namMin Woo-cheon
Moon Seong-hyunMin Woo-Cheon (teen)
Kang Ye-wonKang Se-yeon
JOYSung Mi-do
Goh Doo-shimYook Sung-ja
Jang Hyun-sungPyo Gang-Sun
Seo Yeon-wooHa San-A
Ahn Chang-hwanShin Tae-il
Choi Young-wooPark Seung Seon
Han Kyun-yuGu Ji-pyo
Do Sang-wooCho Shi-young
Lee Bong-ryeonHwang Ma-Jin
Jang In-subOh Jin-kyuTitle information and images are supplied by TMDb. Explore our discovery guide for advice on comparing metadata and legal viewing options.
Where to watch
Availability provided by JustWatch via TMDb. Offers can change. Provider links are listed on TMDb; full playback requires a separately authorized source.
Seasons & episodes
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