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Action thriller

Mantis (2025): Cast & Ratings

Mantis (2025) movie poster

Mantis is a 2025 action thriller directed by Tae-Sung Lee, starring Si-wan Yim as Han-ul, Mantis, Jeon Bae-soo and Jo Woo-jin. It runs 1 hour 53 minutes. It holds 2.9/5 on Letterboxd.

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Mantis (2025) movie poster
Released
Runtime
1h 53m (113 min)
Director
Tae-Sung Lee
Genres
Action , Thriller
Original language
Korean
After the credits
No No extra scene
The story

What Is Mantis About?

The premise of Mantis without spoilers.

After a vacation, ace assassin Mantis returns to a chaotic, collapsed‑order world of hired killers. Re‑entering the anarchic underworld, he meets fellow trainee and rival Jae‑yi and encounters retired legendary killer Dok‑go, realizing that all three are locked in a ruthless battle to claim the top spot among assassins.

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Cast & crew

Mantis Cast & Characters

Si-wan Yim leads the cast as Han-ul, Mantis, with Jeon Bae-soo as Bae Su and Jo Woo-jin as Dok-go. Directed by Tae-Sung Lee; 11 actors are credited in all.

Also Starring in Mantis

· 7 more
Ratings

Mantis Reviews & Ratings

Mantis holds 2.9/5 on Letterboxd. Our Echo Score gives it 73/100, strongest in art & craft (90) and weakest in story & flow (45).

73 /100

Mantis Echo Score Breakdown

While Mantis showcases striking visual craftsmanship and compelling performances, its narrative structure fails to sustain engagement, resulting in a mixed overall reception. Critics and viewers commend the stylish direction, sleek cinematography, and precise editing that elevate the action sequences. The lead actors deliver nuanced portrayals that add emotional weight. Conversely, the plot is described as predictable and sluggish, diminishing excitement. Sensory elements such as sound design and lighting receive consistent praise, yet the uneven story limits repeat viewings. Consequently, the film appeals to fans of kinetic thrillers but rests short of broader acclaim.

Our own 0–100 rating, built from five aspects: art, character, story, the sensory experience and how well a film rewatches.

  • Art & Craft 90

    In terms of art and craft, Mantis benefits from stylish direction and a visual palette that energize its combat set‑pieces. Reviewers highlight Lee Tae‑sung’s inventive camera work, atmospheric lighting, and the editors’ razor‑sharp cuts that maintain momentum. Cinematographer Kang Min‑woo’s composition and production design receive commendation, though some critics note a lack of the intricate framing seen in its predecessor. Overall, the film’s technical execution stands out as a strength.

  • Character & Emotion 88

    When evaluating character and emotion, the lead performances receive strong endorsement. Im Si‑wan’s portrayal of Han‑ul is described as engaging, earnest, and physically compelling, while Park Gyu‑young brings depth and intensity to Jae‑yi, earning sympathy and emotional resonance. Supporting actors such as Jo Woo‑jin add gravitas. Although a few reviewers find the romantic subplot uneven, the overall acting ensemble is viewed as a decisive asset.

  • Story & Flow 45

    In terms of story and flow, Mantis is perceived as uneven. Critics and several users label the plot as obvious, predictable, and over‑extended, with a sluggish first act that hampers engagement. The narrative’s romantic thread is described as forced, and overall development feels under‑cooked, limiting emotional stakes. While the underworld premise offers potential, the execution fails to sustain momentum.

  • Sensory Experience 78

    Sensory experience receives consistent praise. Reviewers commend the film’s sharp sound design, with metallic clangs accentuating combat, and Dalpalan’s distinctive score that enhances tension. Visual elements such as Kang Min‑woo’s lighting schemes and the glossy costume work contribute to a cohesive aesthetic. Though the overall sensory package is strong, it does not fully compensate for narrative shortcomings.

  • Rewatch Factor 65

    Rewatch factor is moderate. The film’s high‑octane action and striking visual style make it appealing for a second viewing among genre enthusiasts, yet the weak plot and predictable pacing diminish lasting appeal. Some viewers report a single‑watch satisfaction, while others find the experience forgettable after the initial thrill. Consequently, repeat viewings are limited to fans of kinetic Korean thrillers.

Details

Mantis Also Known As

14 alternative titles, including “Imádkozó sáska” and “杀手螳螂”.

Also known as
  • Imádkozó sáska
  • 杀手螳螂
  • Mantis: ตั๊กแตนนักฆ่า
  • 殺手螳螂
  • מנטיס
  • Călugărița ucigașă
  • Bogomoljka
  • Богомол
  • مانتيس
  • Modliszka
  • Kudlanka
  • カマキリ
+2 more
  • Богомолка
  • Bogomolka

Seen Mantis?

FAQ

Mantis FAQ: Cast, Runtime & Release Date

Runtime, release date, director, cast, ratings, post-credit scenes and language of Mantis, each answered in a sentence.

How long is Mantis?

Mantis runs 1 hour 53 minutes (113 minutes).

When was Mantis released?

Mantis was released on September 26, 2025.

Who directed Mantis?

Mantis was directed by Tae-Sung Lee.

Who is in the cast of Mantis?

Mantis stars Si-wan Yim as Han-ul, Mantis, Jeon Bae-soo as Bae Su and Jo Woo-jin as Dok-go, among 11 credited actors.

How is Mantis rated?

Mantis has 2.9/5 on Letterboxd.

Does Mantis have a post-credit scene?

No. Mantis has no extra scene during or after the credits.

What language is Mantis in?

The original language of Mantis is Korean.

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