Neon signs bled into the rain-slicked streets of Seoul, their garish light reflecting in the eyes of Lee Han-wool, codenamed Mantis, as he stalked his prey. Years away from the life hadn’t dulled his senses, but the game had changed. He wasn’t the only predator anymore. Emerging from the shadows was Shin Jae-yi, once his eager trainee, now a formidable assassin in her own right, her blade a silver flash in the downpour. The organization, now under the cold, calculating gaze of Dok-go, the legendary killer turned boss, felt different, dangerous. When a simple hit turns sideways, Mantis discovers a web of betrayal and shifting alliances within the organization, forcing him to question everything he thought he knew. Even Gil Bok-soon, a figure from his past, seems to be involved. With the lines between hunter and hunted blurred, Mantis must navigate this treacherous landscape to survive, protect those he cares about and uncover the truth behind the deadly game he’s been pulled back into.
Mantis Movie Overview
| Title | Mantis |
|---|---|
| Release Status | Released |
| Release Date | 2025-09-26 |
| Runtime | 1 hours and 53 minutes |
| Genre | Action, Crime, Thriller |
| Original Language | Ko |
| Spoken Language | Korean |
| Country | South Korea |
| Production Co. | See Át Film |
Mantis Movie Cast
| Name | Character |
|---|---|
| Yim Si-wan | Lee Han-wool / Mantis |
| Park Gyu-young | Shin Jae-yi |
| Jo Woo-jin | Dok-go |
| Sul Kyung-gu | Cha Min-gyu |
| Jeon Do-yeon | Gil Bok-soon |
| Choi Hyun-wook | Benjamin Jo |
| Bae Gang-hee | Soo-min |
| Hwang Sung-bin | Puma Lee |
| Yoo Su-bin | Dong-yeong |
Mantis Movie Storyline
After a self-imposed exile from the cutthroat world of contract killing, Lee Han-wool, once known as the merciless Mantis, reluctantly returns when his quiet life is threatened. The organization he left behind, now under the cold and calculating leadership of Dok-go, isn’t the same. He finds his former friend, the ambitious Shin Jae-yi, now a skilled trainee assassin, caught in the web of Dok-go’s increasingly ruthless operations. Mantis’s return stirs old rivalries, particularly with Cha Min-gyu, a respected but volatile figure within the organization haunted by Mantis’s past successes. When Mantis discovers Dok-go’s sinister plan to consolidate power through a series of false flag operations designed to ignite a war between rival factions, he is forced to choose between his desire for a peaceful existence and his moral obligation to stop the impending bloodshed. Teaming up with Jae-yi, who starts questioning Dok-go’s methods, Mantis embarks on a dangerous mission to expose the truth and dismantle Dok-go’s empire, facing betrayal, brutal fights, and moral dilemmas at every turn. The climax pits Mantis against Dok-go in a deadly showdown, forcing him to embrace the killer he once was to protect the new life he envisioned, with Jae-yi ultimately deciding her own path within the dangerous world they inhabit. The ending leaves audiences questioning whether Mantis can truly escape his past or if he is forever bound to the life of an assassin.
Mantis Movie Details
In the neon-drenched underworld of South Korea, Mantis unfolds as a gripping action thriller, plunging viewers into the complex life of Lee Han-wool, known in the shadowy world as Mantis, a legendary assassin returning from a self-imposed exile. The film delves into the treacherous dynamics of contract killing, where loyalty is a luxury and survival a constant battle. Mantis’s return is far from a quiet one, immediately entangling him with Shin Jae-yi, a promising trainee with lethal potential and a complex admiration for Mantis’s legendary status. Their paths cross under the watchful eye of Dok-go, a retired killer now running the very organization Mantis once dominated, forcing him to confront a past he desperately tried to escape. As Mantis navigates this new landscape, he finds himself caught in a web of deceit and betrayal, with old rivalries resurfacing and new threats emerging. The stakes are further heightened by the presence of Cha Min-gyu, a formidable figure whose influence looms large over the assassin’s world, adding layers of intrigue and danger to Mantis’s journey. With breathtaking fight choreography and a compelling narrative, Mantis explores themes of redemption, legacy, and the human cost of violence in a world where death is a commodity.
Mantis Movie Poster Images
Mantis Movie Trailers
Official Trailer [ENG SUB]
Official Teaser [ENG SUB]
Mantis Movie FAQs
What is the movie Mantis about?
Mantis is about an ace assassin who returns to the contract killer industry after a break. He encounters his trainee friend and a retired legendary killer who now runs the organization.
What genres does Mantis fall into?
Mantis is an action, crime, and thriller movie.
Who are the main actors in Mantis?
The main actors in Mantis include Yim Si-wan, Park Gyu-young, and Jo Woo-jin.
Who directed Mantis?
Lee Tae-sung directed Mantis.
When was Mantis released?
Mantis was released on September 26, 2025.
What is the original language of Mantis?
The original language of Mantis is Korean.
Is Mantis part of a collection?
Yes, Mantis is part of the Kill Boksoon Collection.
What is the tagline for Mantis?
The tagline for Mantis is A New Generation of Rising Killers.
What is the runtime of Mantis?
The runtime of Mantis is 113 minutes.
Where was Mantis produced?
Mantis was produced in South Korea.
