Signal (2016)

I would ask someone to protect a person important to me. If I could communicate with the past, that is… If I do nothing, I’d regret that too. Isn’t it better to try something even if it becomes a mess? – Cha Soo Hyun

signal kdrama

Synopsis : A mysterious walkie talkie allows a detective in the year 1989 to communicate with a cold case profiler from 2015; with the power of fore and hindsight the two not only solve crimes but prevent them from ever taking place.

A criminal profiler Park Hae Young (Lee Je-hoon), solves a kidnapping case that ended up with a falsely accused who apparently disappeared after the crime, with a mysterious walkie-talkie he picks up. The success of this case triggers the formation of a long-term cold case team, led by Detective Cha Soo-Hyun (Kim Hye-soo), who has been searching her long-lost mentor Lee Jae-Han (Cho Jin-woong), for the past 15 years. With the help of Detective Lee Jae-Han, the person at the other end of the walkie-talkie, Park Hae-young solves many other cold cases that have remained unsolved for years, while helping Lee Jae-Han help solve some cases in the past. However, grave unintended sequences follow. Within the limited capabilities of the supernatural element, the three detectives put up a fight against time to solve crimes and save themselves from the unprecedented events that occur due to their actions. (Source: Wikipedia)



  • Lee Je-hoon as Park Hae-young
  • Kim Hye-soo as Cha Soo-hyun
  • Cho Jin-woong as Lee Jae-han
  • Genre : Procedural / Drama / Thriller
  • It premiered on tvN on January 22, 2016.
  • No. of Episodes : 16
  • The series was inspired by real-life criminal incidents in Korea, including the Hwaseong serial murders.
  • The series received widespread acclaim from audience and critics alike for its story and performances. Also, it is the tenth highest-rated Korean drama in cable television history with a peak audience viewership of 12.54%.
  • It has been reported that a second season of the Korean drama was in the works.


  • Signal was a crime thriller that kept me on the edge of my seat throughout most of the show.
  • There are a lot of flashbacks and that makes the series confusing at times.
  • I wanted to know more about the walkie-talkie and had some questions that were never answered.
  • The acting was amazing. The cast portrayed their expressions and emotions really well.
  • Don’t go into this drama expecting a romance because you really won’t get anything.
  • This is definitely a must watch drama.

My Rating – 8.5/10



Have you watched Signal? Share your ‘feels’!

P.S. Not all the photos are mine. Credits to the owners.


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  • jayneglezelle

    Wow! Never saw this one yet and your synopsis alone made me interested! I love watching things such as mystery and solving cases which is all about this! I love how they put the twist too

  • mytravelatte.com

    This reminds me of the local movie “Moments of Love”. It was an interesting story, maybe ito rin. Almost all of kdramas naman that I’ve have beautiful scripts and plots.

  • Dianne

    Most korean dramas I watched were romantic ang genre. This is something different and very interesting cos it’s inspired by real life criminals.

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