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

2016- 2016

2 Seasons

24 Episodes

8.2(201 votes)

Returning Series

Crime

Mystery

Sci-Fi & Fantasy

Drama

Overview

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

Where to Watch

Stream

Netflix

Amazon Prime Video

Amazon Prime Video with Ads

Links & Resources

Website IMDbView

Social & External

Production Companies

AStory

Studio Dragon

BA Entertainment

Baram Pictures

Episodes

No episodes found for this season.

The people behind it

Cast & crew

10 featured cast members

Starring

Lee Je-hoon

Lee Je-hoon

Park Hae-young

Kim Hye-soo

Kim Hye-soo

Cha Soo-hyun

Cho Jin-woong

Cho Jin-woong

Lee Jae-han

Jang Hyun-sung

Jang Hyun-sung

Kim Bum-joo

Jung Hae-kyun

Jung Hae-kyun

Ahn Chi-soo

Kim Won-hae

Kim Won-hae

Kim Gye-chul

Jung Han-bi

Jung Han-bi

Oh Yoon-seo

Lee Yoo-jun

Lee Yoo-jun

Jung Heon-gi

Kim Min-gue

Kim Min-gue

Hwang Ui-kyung

Kang Chan-hee

Kang Chan-hee

Park Sun-woo

Creative team

Created by: Kim Eun-hee
Kim Won-suk
Showrunner: Jinnie Choi
Produced by: Lee Jae-moon

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