The One and Only
Created by Moon Jung-min
On JTBC
A dark, melancholic melodrama about mortality and revenge where terminally ill women confront death by orchestrating murder, anchored in intimate character study despite its violent premise.
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.
Genres
Questions people ask
Is The One and Only sad? Yes, very. More sad than 98% of series.
Does The One and Only leave you hopeful? No. Less hopeful than 96% of series.
Is The One and Only easy watching? No. Less comforting than 94% of series.
Is The One and Only violent? Yes. More violent than 85% of series.
Is The One and Only scary? Yes. More frightening than 79% of series.
These describe how the series comes across across its whole run, compared with other well-known series. They are not a content list — nothing here was counted or checked episode by episode, so for age-suitability or specific content use a classification board or a dedicated content-warning service.
Cinnamon Score
How much this series gives you that nothing else will, and whether it delivers.
Familiar shape, done well.
How unlike any other series this one feels
How much more it delivers than it promises
How much audiences actually like it
Ensemble
Like The One and Only
Nearest across the full emotional profile.
Same Mood as The One and Only
Nearest on what's most distinctive about this one.
Like The One and Only, But Darker
Similar, pushed toward heavier and more intense.
Like The One and Only, But Lighter
Similar, pushed toward warmer and easier.
Like The One and Only, But Less Popular
Same territory, far fewer people have seen it.
