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.
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Episodes
S1.E1 · September 5, 2025
Episode 1
6.5When a series of terrible murders ensues in a residential area, Cha Su-yeol is forced to seek help from Jeong I-sin, a serial killer from the past.
Go to episode page →Cast
Go Hyun-jung
Jeong Yi-shin
Jang Dong-yoon
Cha Su-yeol
Cho Seong-ha
Joong-ho
EL
Na-hee
Kim Bo-ra
Lee Jung-yeon
Lee Hwang-eui
Jung Hyeon Nam [I Sin's father]
Kim Min-ho
Bae Seong Gyu [Detective]
Kim Tae-jeong
Choi Hyeok [Detective]
Park Wan-Hyeong
Son Ji An [Detective]
Han Dong-hee
Seo A Ra [Jung Yeon's friend]
Lee Tae-gu
Seo Gu Wan
Lee Yoon-geon
Hong Seung Pyo [Police commissioner general]