S01E011:00:081. Episode 1When 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.Episodes — Season 1
Season pageS01E011:00:081. Episode 1When 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.
S01E021:01:502. Episode 2The culprit has been arrested, but the victim’s whereabouts remain unknown. Su-yeol struggles to save a life as I-sin reveals her true intentions.
S01E031:01:363. Episode 3I-shin offers assistance with the investigation, but it's unclear why she would help a cop. Su-yeol unravels the origins of I-shin's murderous instinct.
S01E041:00:554. Episode 4The culprit begins to close in on Su-yeol's family. I-shin pressures Su-yeol to take action — but she happens to be the one threatening his family.
S01E051:00:215. Episode 5Su-yeol finds I-shin in his home after she vanishes under police watch. The killer demands to speak to I-shin and gives her a hint about the plan.
S01E061:00:076. Episode 6Shaken by recent events, Su-yeol attempts to confide in Lee Jung-yeon. During a tense call, I-shin manipulates the killer into exposing a crucial lead.
S01E071:00:257. Episode 7As Jung-yeon copes with the truth of Su-yeol's past, the killer reveals their identity — and takes a hostage, forcing Su-yeol into a dangerous bargain.
S01E081:00:128. Episode 8After a tense hostage exchange, I-shin confronts her protégé. Su-yeol makes a grim discovery about his family's fractured past.Where to stream Queen Mantis
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Queen Mantis synopsis
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.
Queen Mantis cast
Go Hyun-jungJeong Yi-shin · 8 ep.
Jang Dong-yoonCha Su-yeol · 8 ep.
Cho Seong-haJoong-ho · 8 ep.
ELNa-hee · 8 ep.
Kim Bo-raLee Jung-yeon · 8 ep.
Lee Hwang-euiJung Hyeon Nam [I Sin's father] · 8 ep.
Kim Min-hoBae Seong Gyu [Detective] · 8 ep.
Kim Tae-jeongChoi Hyeok [Detective] · 8 ep.Park Wan-HyeongSon Ji An [Detective] · 8 ep.
Han Dong-heeSeo A Ra [Jung Yeon's friend] · 8 ep.
Lee Tae-guSeo Gu Wan · 8 ep.Lee Yoon-geonHong Seung Pyo [Police commissioner general] · 8 ep.Han Si-AhKim Eun Ae · 8 ep.
Kil Eun-sungKim U Tae [Security] · 8 ep.
Cha Soon-baePark Eun Bae [Min Jae's father] · 8 ep.Lee Chang-minPark Min-jae · 8 ep.About the series Queen Mantis
Queen Mantis is a series (crime and mystery) created by Byun Young-joo, airing on SBS since 2025. It has 1 season and 8 episodes of about 60 minutes each. The series ended on September 27, 2025. Cast members include Go Hyun-jung, Jang Dong-yoon and Cho Seong-ha. It is rated 7.2/10 by 30 TMDB users.
Frequently asked questions about Queen Mantis
Where to watch Queen Mantis online?
In the United States, Queen Mantis is available with a subscription on Netflix, Rakuten Viki and OnDemandKorea, for free with ads on Rakuten Viki (source: JustWatch via TMDB, offers subject to change). Each episode has its own page with this information.
How many seasons of Queen Mantis are there?
Queen Mantis has 1 season for a total of 8 episodes.
Has Queen Mantis ended?
Yes, the series has ended: the last episode aired on September 27, 2025.
Who stars in Queen Mantis?
The lead actors are 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).
