Series Brief
Overview
Cha Su-yeol, a police officer who has long despised his mother, the notorious 'Mantis' serial killer, must reluctantly turn to her for help when a copycat killer emerges.
Transmission Paths
Where to Watch
Next Signal
Similar Shows
Featured Players
Cast 24
Ko Hyun-jung
as Jeong Yi-shin
Jang Dong-yoon
as Cha Su-yeol
Cho Seong-ha
as Joong-ho
Lee El
as Na-hee
Kim Bo-ra
as Lee Jung-yeon
Lee Hwang-eui
as Jung Hyeon Nam [I Sin's father]
Kim Min-ho
as Bae Seong Gyu [Detective]
Kim Tae-jeong
as Choi Hyeok [Detective]
Park Wan-Hyeong
as Son Ji An [Detective]
Han Dong-hee
as Seo A Ra [Jung Yeon's friend]
Lee Tae-gu
as Seo Gu Wan
Lee Yoon-geon
as Hong Seung Pyo [Police commissioner general]
Han Si-Ah
as Kim Eun Ae
Kil Eun-sung
as Kim U Tae [Security]
Cha Soon-bae
as Park Eun Bae [Min Jae's father]
Lee Chang-min
as Park Min Jae
Byun Yo-han
1 episode
Show all 24 cast Hide full cast
Signal Match
Cast Similarity
Black Out
5 shared cast members
Shared
Jo Jae-yun, Kim Bo-ra, Cha Soon-bae
+2 more
Like Flowers in Sand
3 shared cast members
Shared
Kim Bo-ra, Kim Tae-jeong, Jang Dong-yoon
Unlock My Boss
2 shared cast members
Shared
Ko Dong-hyoung, Jo Jae-yun
Nine Puzzles
2 shared cast members
Shared
Ko Dong-hyoung, Joo Hae-eun
Perfect Crown
2 shared cast members
Shared
Jo Jae-yun, Jo Young-mi
Mask Girl
1 shared cast member
Shared
Ko Hyun-jung
Battle for Happiness
1 shared cast member
Shared
Lee El
Agency
1 shared cast member
Shared
Cho Seong-ha
The Legend of Kitchen Soldier
1 shared cast member
Shared
Han Dong-hee
Daily Dose of Sunshine
1 shared cast member
Shared
Jang Dong-yoon
Signal Match
Crew Similarity
Topic Overlay
Topic Keyword Similarity
Black Bird
2 shared keywords
Topics
prison, serial killer
Dexter: Original Sin
2 shared keywords
Topics
based on tv series, serial killer
Asura
2 shared keywords
Topics
remake, based on tv series
Best Medicine
2 shared keywords
Topics
remake, based on tv series
Had I Not Seen the Sun
2 shared keywords
Topics
prison, serial killer
Class
2 shared keywords
Topics
remake, based on tv series
Spice and Wolf: MERCHANT MEETS THE WISE WOLF
1 shared keyword
Topics
remake
Copycat Killer
1 shared keyword
Topics
serial killer
Love Me
1 shared keyword
Topics
remake
BASTARD‼ -Heavy Metal, Dark Fantasy-
1 shared keyword
Topics
remake
Keyword Cloud
Keywords
prison
remake
serial killer
based on tv series
Technical Sheet
Details
- First Aired
- September 05, 2025
- Status
- Ended
- Episode Runtime
- 60 minutes
- Origin
- KR
- TMDB Votes
- 25