Signal

Signal

There are those who are born monsters, but there are also those who are made into monsters by people.

Created by Kim Won-suk, Kim Eun-hee

On tvN

20162 seasons24 episodes8.2 / 10

A dark, high-concept thriller that uses time-bridging communication to interrogate how trauma and corruption create monsters, grounded in procedural investigation but elevated by its metaphysical premise.


Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.

Where to watch

Questions people ask

  • Is Signal scary? Yes, very. More frightening than 93% of series.

  • Is Signal sad? Yes, very. More sad than 91% of series.

  • Is Signal one of a kind? Barely. Less singular than 87% of series.

  • Is Signal violent? Yes. More violent than 81% of series.

  • Does Signal leave you hopeful? Barely. Less hopeful than 81% of series.

  • Is Signal easy watching? Barely. Less comforting than 75% 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.

Written about

39/ 100

Cinnamon Score

How much this series gives you that nothing else will, and whether it delivers.

You have seen this shape before.

Rarity20

How unlike any other series this one feels

Surprise51

How much more it delivers than it promises

Love53

How much audiences actually like it

The highest scores in the catalogue →

Ensemble

Everything like Signal, and what each one shares →

Like Signal

Nearest across the full emotional profile.

Same Mood as Signal

Nearest on what's most distinctive about this one.

Like Signal, But Darker

Similar, pushed toward heavier and more intense.

Like Signal, But Lighter

Similar, pushed toward warmer and easier.

Like Signal, But Less Popular

Same territory, far fewer people have seen it.

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