The secret society of contract killers falls into chaos, unleashing a new breed of assassins. With old rules in ruins, who dares claim the shadows?
The rules are broken.
The code is dead.
And a new breed of killer just stepped into the shadows.
In Mantis (2025), South Korea’s most feared secret society of contract killers has collapsed into chaos. They were once bound by strict honor and silence. With power up for grabs and blood in the streets, one question remains: Who will rule the darkness now?
Directed by Lee Tae-sung, this Korean action-thriller is powered by intense performances from Park Gyuyoung, Yim Si-wan, and Jo Woo-jin. It delivers non-stop tension. The film features brutal fight scenes and a story that cuts deep.
If you love John Wick, Oldboy, or The Man from Nowhere, Mantis will keep you on edge from the first kill to the last betrayal.
The Secret Society Has Fallen
For decades, the Mantis Order controlled the underground world of assassins.
One mission. One rule. No mercy.
Yim Si-wan, Park Gyu-young, and Jo Woo-jin star in MANTIS, a new film set in the world of KILL BOKSOON. Coming September 26.
The secret society of contract killers falls into chaos, unleashing a new breed of assassins. With old rules in ruins, who dares claim the shadows? pic.twitter.com/T5It4uG0yv
— Netflix (@netflix) August 27, 2025
But when their leadership is wiped out in a surprise attack, the pact shatters.
Now, rogue killers rise.
New factions form.
And a deadly free-for-all begins.
What makes Mantis so gripping isn’t just the action it’s the fall of order.
No more codes.
No more loyalty.
Just survival.
As one fan tweeted:
“This isn’t an assassin movie. It’s a gang war with knives.”
Another said:
“The silence before each kill? Chills. Pure chills.”
Park Gyuyoung Is a Force of Nature
Park Gyuyoung stars as Soo-jin, a former enforcer forced back into the game after her past catches up with her. She doesn’t talk much. She doesn’t need to. Her eyes say everything.
She’s fast.
She’s quiet.
And she fights like fury.
Yim Si-wan plays a rising assassin with ambition—and a dark agenda. Jo Woo-jin brings cold authority as the last surviving elder trying to restore order.
Together, they create a web of trust, revenge, and shifting loyalties that keeps you guessing until the final frame.
Why This Thriller Stands Out
Mantis doesn’t rely on flashy stunts.
It uses:
- Tight, close-quarters combat
- Dark, rain-soaked visuals
- A haunting score that pulses like a heartbeat
Key moments that hit hard:
- A knife fight in a subway tunnel lit only by passing trains
- A betrayal during a silent rooftop meeting
- Soo-jin’s final stand surrounded, outnumbered, unstoppable
Writer-director Lee Tae-sung, along with Byun Sung-hyun, crafts a world. In this world, every shadow hides a blade. Moreover, every ally is your last.
Final Thoughts: Dark. Gritty. Unforgettable.
Mantis proves Korean action cinema is still at its peak.
Smart writing.
Relentless pacing.
And a lead heroine who redefines what it means to be dangerous.
Whether you’re here for the kills, the mystery, or the raw emotion, this film delivers on all fronts.
Turn off the lights.
Crank up the sound.
And don’t blink.
Because in the world of Mantis, one wrong move ends everything.