The Devil You Know
악의 도시
We checked 8 streaming services in India on 07 Jun 2026 at 04:40 IST
About
Yu-jeong is a star English tutor, popular nationwide for her lessons and beauty. She has the perfect life going on- her education business is blooming, she has a successful doctor husband and a loving daughter. One day, she meets Sun-hee from a volunteer group. He seems like a friendly guy with charms. Gang-su, Yu-Jeong's childhood friend who is like a little brother to her, however warns her about Sun-hee that he has a bad reputation even among gangsters. But what Yu-jeong doesn't realize is that Sun-hee is a narcissistic sociopath- until it's too late. Meanwhile, Sun-hee's gang brothers steal money behind his back, and Sun-hee's old time friend approaches him to start a new drug business. Yu-jeong fights tooth and nails to break free from Sun-hee and enlists Gang-su's help- and everything turns deadly when it all reaches a boiling point.
Cast
Where does The Devil You Know rank today?
The Devil You Know is #10000 on the CineFlixo Daily Streaming Charts today.
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Watch The Devil You Know Online Free in HD
Looking for a place to watch The Devil You Know online for free? You've landed on the right page. The Devil You Know is a talked-about Coreano thriller and crime movie from 2025 that you can stream right now on CineFlixo in high quality, no signup required.
About The Devil You Know
Yu-jeong is a star English tutor, popular nationwide for her lessons and beauty. She has the perfect life going on- her education business is blooming, she has a successful doctor husband and a loving daughter. One day, she meets Sun-hee from a volunteer group. He seems like a friendly guy with charms. Gang-su, Yu-Jeong's childhood friend who is like a little brother to her, however warns her about Sun-hee that he has a bad reputation even among gangsters. But what Yu-jeong doesn't realize is that Sun-hee is a narcissistic sociopath- until it's too late. Meanwhile, Sun-hee's gang brothers steal money behind his back, and Sun-hee's old time friend approaches him to start a new drug business. Yu-jeong fights tooth and nails to break free from Sun-hee and enlists Gang-su's help- and everything turns deadly when it all reaches a boiling point. Running 104 minutes.
The Devil You Know Cast and Characters
The cast features Han Chae-young (as Yu-jeong), Hyun Woo-sung (as Sun-hee), and Jang Eui-soo (as Gang-su). Their performances are a major reason The Devil You Know has built such a passionate audience.
Where to Watch The Devil You Know Online
CineFlixo lets you stream The Devil You Know online free, instantly, in HD. There's nothing to install — open the page, hit play, done. Works perfectly on Jio, Airtel, Vi networks across India and on slow mobile data thanks to our adaptive video pipeline.
▶ Watch The Devil You Know NowWhy People Are Watching The Devil You Know
The Devil You Know flies under the radar but it deserves your attention. What makes it work is tight pacing that earns its twists. If you enjoy Coreano storytelling that doesn't follow the same tired beats, this is the kind of film you'll end up recommending to friends.
Frequently Asked Questions about The Devil You Know
Where can I watch The Devil You Know online for free?
You can watch The Devil You Know online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How long is The Devil You Know?
The Devil You Know runs for 104 minutes (about 1.7 hours).
Is The Devil You Know good? What's the rating?
The Devil You Know holds a 5.5/10 rating based on 2 reviews — a niche pick worth checking out.
Who is in the cast of The Devil You Know?
The main cast includes Han Chae-young, Hyun Woo-sung, and Jang Eui-soo.
Is The Devil You Know available in Coreano?
Yes — The Devil You Know was originally produced in Coreano and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was The Devil You Know released?
The Devil You Know was released in 2025.
Do I need an account to watch The Devil You Know on CineFlixo?
No. CineFlixo is free and you can watch The Devil You Know without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
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Frequently Asked Questions
Common questions about The Devil You Know
Where can I watch The Devil You Know for free?
You can watch The Devil You Know (2025) online for free on CineFlixo. Just click "Watch Free" on this page to start streaming instantly — no account, subscription, or downloads required.
What is The Devil You Know about?
The Devil You Know is a Thriller/Crime film. Yu-jeong is a star English tutor, popular nationwide for her lessons and beauty. She has the perfect life going on- her education business is blooming, she has a successful doctor husband and a loving daughter. One day, she meets Sun-hee from a volunteer group. He seems like a friendly guy with charms. Gang-su, Yu-Jeong's childhood friend who is like a little brother to her, however warns her about Sun-hee that he has a bad reputation even among gangsters. But what Yu-jeong doesn't realize is that Sun-hee is a narcissistic sociopath- until it's too late. Meanwhile, Sun-hee's gang brothers steal money behind his back, and Sun-hee's old time friend approaches him to start a new drug business. Yu-jeong fights tooth and nails to break free from Sun-hee and enlists Gang-su's help- and everything turns deadly when it all reaches a boiling point.
When was The Devil You Know released?
The Devil You Know was released on June 20, 2025. It has a runtime of 1h 44m.
Who stars in The Devil You Know?
The Devil You Know stars Han Chae-young, Hyun Woo-sung and Jang Eui-soo. The full cast list is available in the Cast section above.
Is The Devil You Know available in HD?
Yes, The Devil You Know is available to stream in high definition (HD) on CineFlixo. Our players automatically deliver the best quality your connection supports — no extra setup needed.