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Original title: 시그널

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

  • TV series
  • 2016
  • TV-MA
  • 2 seasons
  • 24 episodes

Created by Kim Eun-hee and Kim Won-suk

8.2

TMDB audience rating
8.2 out of 10 from 209 votes

Where to watch Trailer

Overview


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

Roughly 35h 36m to watch every episode. This is an estimate: 24 episodes at the latest episode runtime of 89 minutes.

Next episode listed by TMDB: Dec 7, 2026.

Where to watch

Official offers in the United States

Subscription

Included with a paid subscription
  • Netflix
  • Amazon Prime Video
  • Netflix Standard with Ads
  • Amazon Prime Video with Ads
  • Tencent Video

Free with ads

Free to watch, with commercials
  • The Roku Channel
  • Tubi TV

Prices and links on TMDB

Availability data by JustWatch, provided through TMDB. Offers vary by country and change often, so confirm with the service before you subscribe, rent or buy. WatchTrove does not host or stream video.

Trailer

Play trailer: [#시그널] 6분 하이라이트!

Official video hosted on YouTube. The player loads only when you press play.

Series cast and crew

  • Lee Je-hoon

    Lee Je-hoonPark Hae-young
    24 episodes

  • Kim Hye-soo

    Kim Hye-sooCha Soo-hyun
    24 episodes

  • Cho Jin-woong

    Cho Jin-woongLee Jae-han
    24 episodes

  • Jang Hyun-sung

    Jang Hyun-sungKim Bum-joo
    16 episodes

  • Jung Hae-kyun

    Jung Hae-kyunAhn Chi-soo
    16 episodes

  • Kim Won-hae

    Kim Won-haeKim Gye-chul
    16 episodes

  • Jung Han-bi

    Jung Han-biOh Yoon-seo
    16 episodes

  • Lee Yoo-jun

    Lee Yoo-junJung Heon-gi
    16 episodes

  • Kim Min-gue

    Kim Min-gueHwang Ui-kyung
    16 episodes

  • Kang Chan-hee

    Kang Chan-heePark Sun-woo
    16 episodes

  • Im Hwa-young

    Im Hwa-youngCha Soo-min
    16 episodes

  • Jeon Su-ji

    Jeon Su-jiKang Hye-seung
    6 episodes

  • Shin Yi-Joon

    Shin Yi-JoonKang Hye-seung (Young)
    6 episodes

  • Seo Ji-hoon

    Seo Ji-hoonJang Tae-jin
    6 episodes

  • Kim Woo-seok

    Kim Woo-seokLee Dong-jin
    6 episodes

  • Son Hyun-joo

    Son Hyun-jooJang Young-cheol
    5 episodes

  • Choi Woo-ri

    Choi Woo-riShin Yeo-jin
    3 episodes

  • Sung Hyun-mi

    Sung Hyun-miJung Kyung-soon
    3 episodes

Created by
Kim Eun-hee and Kim Won-suk
Network
tvN

Seasons and episodes