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Home » News » Netflix Film Mantis Announces September 26 Release with Main Trailer and Key Art

Netflix Film Mantis Announces September 26 Release with Main Trailer and Key Art

Kate SánchezBy Kate Sánchez09/23/20252 Mins Read
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Netflix has unveiled the official main trailer and key art for its upcoming action film Mantis. A spin-off of the Netflix Original Kill Boksoon is slated to stream globally on September 26. The film promises a brutal and stylish showdown among a compelling ensemble of contract killers in a world where the established rules of their profession have collapsed, leaving the coveted No. 1 spot up for grabs.

Starring Yim Si-wan and Park Gyu-young, who previously appeared together in Squid Game, the film is directed by debuting filmmaker Lee Tae-sung. Mantis is positioned as a thrilling action film that stands out for its stylish action and layered character chemistry.

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What is Netflix’s Mantis about?

Mantis - Netflix Movie

The film’s plot follows Han-ul, also known as “Mantis,” an elite assassin who returns from a long absence to find his former company, MK Entertainment, in crisis. He decides to start a new venture, “Mantis Company,” with his former rival and fellow trainee, Jae-yi. The duo’s dynamic and ambition add unpredictability to their partnership.

The situation is further complicated by the reemergence of Dokgo, a legendary retired assassin and Han-ul’s former mentor, who aims to take control as the CEO of MK Entertainment. The tension is amplified by Benjamin, an investor and CEO of a gaming company, who recognizes Jae-yi’s talent and attempts to challenge her loyalty to Han-ul. This creates a complex web of shifting alliances and rivalries as each character vies for the top spot.

Watch the Trailer

The main trailer highlights the film’s visually striking, rhythm-driven action and the intense competition among the three leads. The narrative promises a series of twists, confrontations, and mind games as the characters navigate a world where survival depends on wit, skill, and the willingness to betray. 

Mantis Cast 

Mantis - Netflix Movie

  • Yim Si-wan as Han-ul: A former assassin called “Mantis”
  • Park Gyu-young as Jae-yi: A former trainee and Matnis’ rival
  • Jo Woo-jin as Dokgo: A legendary retired assassin
  • Choi Hyun-wook as Benjamin: An investor and CEO of a gaming company

When is the release date for the Mantis Netflix movie?

The film will release exclusively on Netflix on September 26, 2025.

Mantis - Netflix Movie

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Kate Sánchez
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Kate Sanchez is Co-Founder and EIC of But Why Tho? She covers video games, film, TV, and anime. Kate is known for championing international media, animation, and media that tells stories from underrepresented perspectives. Kate is also a member of the Austin Film Critics Association and Hollywood Creative Alliance. As a freelance writer, she has bylines at MMORPG.com, IGN, and Game Informer.

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