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K-Drama Diary › 2021 K-dramas › The One and Only

Poster of The One and Only

The One and Only

한 사람만

  • Ended
  • 2021
  • 16 episodes
  • 65 min per episode
  • Drama
  • In Korea on JTBC

Where to watch The One and Only in the US

Watch it free · You can watch The One and Only for free and legally in the US on Viki, with a few ads. Free K-dramas

You can stream The One and Only in the US on Viki, Viki.

Included with subscription

Availability updated November 6, 2026. All options and prices

The One and Only TV ratings in Korea

In Korea The One and Only averaged a 0.89% audience share over 14 episodes, peaking at 2.44% with episode 1 (Nielsen Korea, nationwide).

Source: Nielsen Korea data as reported by Wikipedia

The One and Only plot

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.

The One and Only cast

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