Series

Watch Queen Mantis (2025) Online

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7.228 votes20251hEndedCrimeMysteryDramaOfficial site

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.

Episodes

Season 1

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1. Episode 1Now viewing2025-09-051h6.5When 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.
2. Episode 22025-09-061h 1m7.5The 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.
3. Episode 32025-09-121h 1m7.0I-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.
4. Episode 42025-09-131h6.5The 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.
5. Episode 52025-09-191h6.5Su-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.
6. Episode 62025-09-201h6.5Shaken 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.
7. Episode 72025-09-261h5.0As 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.
8. Episode 82025-09-271h3.0After a tense hostage exchange, I-shin confronts her protégé. Su-yeol makes a grim discovery about his family's fractured past.

Cast

Top Billed Cast

Go Hyun-jung
Jeong Yi-shin
Jang Dong-yoon
Cha Su-yeol
Cho Seong-ha
Joong-ho
Lee 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]
No photo
Park Wan-Hyeong
Son Ji An [Detective]
Han Dong-hee
Seo A Ra [Jung Yeon's friend]
Lee Tae-gu
Seo Gu Wan
No photo
Lee Yoon-geon
Hong Seung Pyo [Police commissioner general]
No photo
Han Si-Ah
Kim Eun Ae
Kil Eun-sung
Kim U Tae [Security]
Cha Soon-bae
Park Eun Bae [Min Jae's father]
No photo
Lee Chang-min
Park Min-jae

Availability

Where To Watch Legally

Stream

Free

Rakuten Viki

Streaming availability data provided by JustWatch.

FAQ

Frequently Asked Questions

Is Queen Mantis available to watch online?

Yes - see the "Where to watch legally" section on this page for streaming, rental and purchase options.

How many seasons does Queen Mantis have?

Queen Mantis has 1 season and 8 episodes.

When did Queen Mantis first air?

Queen Mantis first aired in 2025.

Is Queen Mantis still running?

Queen Mantis's status on TMDB is: Ended.

What genre is Queen Mantis?

Queen Mantis is classified as Crime, Mystery, Drama.