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Community reviews
From TMDb members · 1 total- LastCaress1972
Brutal South Korean film about a serial rapist/killer (Min-sik Choi, Oldboy) who picks on the wrong girl when he kills and chops up the pregnant fiancee of a government secret agent (Byung-hun Lee, A Bittersweet Life, The Good, The Bad, The Weird) who proceeds to track him down,…
Full text & links on TMDb in the reviews section below.
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I Saw the Devil
“Abandon all compassion.”
78%
Movie
2h 24m
AI Analysis
I Saw the Devil (2010) — AI movie analysis
WatchMind AI generated this AI analysis of I Saw the Devil (2010) — a movie tagged as Thriller and Horror with dark and tense moods and steady pacing.
Story & themes: Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself. Our models also surface themes such as ai and revenge from synopsis and genre signals.
Watch context: Best suited for general audiences. Expect steady storytelling (~144 min).
Community signal: TMDb members rate I Saw the Devil 78% (2,997 votes) — strong audience scores for this movie.
AI verdict
I Saw the Devil is a film worth prioritising when you want something with strong audience scores — our AI analysis flags it as a strong match for its genre and tone profile.
Algorithmic AI analysis from genres, synopsis, pacing heuristics, and TMDb community scores — not a generative chatbot. How WatchMind works.
Insights
Audience & engagement
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TMDb audience score
78%
from 3.0k TMDb votes
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Synopsis
Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself.
Quick facts
- Type
- Movie
- Status
- Released
- Release date
- 2010-08-12
- Runtime
- 2h 24m
- TMDB rating
- 7.8
- TMDB ID
- 49797
Watch & discovery tips
- Read TMDb member reviews in the reviews section, and audience tips from other WatchMind visitors in Audience notes.
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Frequently asked questions
Where can I watch I Saw the Devil (2010)?
I Saw the Devil is available for discovery on WatchMind. You can find official links to rent, buy, or stream from licensed digital stores like Apple TV and Amazon in our "Where to Watch" section.
Is there an official trailer for I Saw the Devil?
Yes, you can watch the official trailer for I Saw the Devil directly on this page. We pull the latest video metadata from TMDb and play it via YouTube integration.
What is I Saw the Devil about?
Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power t... This is the official synopsis available via TMDb community metadata.
Is there an AI analysis for I Saw the Devil?
Yes. WatchMind publishes an AI analysis on this page — tone, pacing, audience fit, and community scores from TMDb metadata and recommendation models (not a chatbot). Scroll to the AI Analysis section or read the meta description summary.
How long is the movie I Saw the Devil?
The official runtime for I Saw the Devil is approximately 144 minutes.
Cast & crew
Names and photos from The Movie Database (TMDb). Follow links on themoviedb.org for full filmographies.
Directors & writers
Cast

Lee Byung-hun
Kim Soo-hyeon

Choi Min-sik
Kyung-chul

Jeon Kuk-hwan
Squad Chief Jang

Cheon Ho-jin
Section Chief Oh

Oh San-ha
Joo-yeon

Kim Yoon-seo
Se-yeon

Nam Bo-ra
Section Chief's Daughter

Lee Jun-hyuk
NIS Agent

Yoon Chae-yeong
Nurse Han Song-i

Choi Moo-seong
Tae-joo

Kim In-seo
Se-jung

Kim Kap-soo
Planning Team Deputy Head

Um Tae-goo
Detective

Choi Jin-ho
Planning Director
- M
Mi-nam Jeong
Gangster in Taxi

Jo Deok-jae
Detective Kang
- J
Jang Jeong-won
Kyung-chul's Son

Park Seo-yeon
Woman at Pension
Audience notes
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Community reviews
Written by TMDb members — same catalogue as our movie & TV metadata. API terms
Brutal South Korean film about a serial rapist/killer (Min-sik Choi, Oldboy) who picks on the wrong girl when he kills and chops up the pregnant fiancee of a government secret agent (Byung-hun Lee, A Bittersweet Life, The Good, The Bad, The Weird) who proceeds to track him down, beat him to a pulp, place a tracking device on him, give him some money and release him. The idea being that he wants the killer to suffer and suffer and suffer, again and again, until his fear is as great as that of his victims, before he kills him. I Saw The Devil is not without its faults; at almost two-and-a-half hours, it's too long, the brutal nature of the characters threatens to slide into absurdity especially when our killer takes refuge with a cannibalistic mate who doesn't mind his wife being raped (she doesn't mind, either; I guess your standards slip when your old man eats people for shits & giggles), and the concept of getting this serial rapist/killer to a point of sheer terror, like his victims - is flawed; this guy, as played by Min-sik Choi, is NEVER going to feel any fear. And so it is, by the end, rendering the whole catch/release premise redundant. That said, it's gripping, it's tense throughout much of the runtime, the lead performances are superb, it's astonishingly violent and gory, but it's meted out just right; more Seven than Saw, and it is photographed exquisitely. A serial killer movie bordering on torture porn, set in Korea in the snow, shouldn't logically have a colour palette this vivid, but every frame is just beautiful.
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