Very disappointing...

It’s sentimental, ridiculously long and only occasionally funny

It is a whirlwind of delight --- attractive actors, stunning couture, spectacular sets and outrageous parties.

The acting in this movie is really good.

If you're watching this movie, chances are you're looking for something different than the usual Western drama/thriller flick. The good news is that you've certifiably found something different. The bad news is that not everyone is going to like this movie. Most reviews of "I Saw the Devil" talk about its ultraviolence, and I'll talk about it for a bit too, because it's important to this movie. As much as people like to complain about the violence or gore that this movie shows, they prove the reasoning behind it. This movie has borderline absurd scenes that make you more uncomfortable than you thought was possible from watching a movie, and that's the best thing about it. "I saw the Devil" will give you an experience you just can't get from any Western thriller movie, which is why I love it.This is certainly not a date movie, not a movie to watch with your parents, maybe not even anyone you aren't totally comfortable with. There's a lot of really, really strange and uncomfortable things that happen. And that's why some people just won't like this movie. Which is fine, some people don't like the feeling of a strong thriller movie. But if you're a thriller fan, and are looking for a wild ride of a movie, this is it.

Just when you think they've run out of new ideas, a movie lie this comes along. Brilliant

I absolutely don't understand both the IMDb score and those reviews here. How can somebody find this film good is beyond me. I must admit the beginning looked fairly ok, punishing sins of the murderer could have led to interesting situations and psychology, but the whole point was destroyed by every of the characters acting unbelievably stupid and/or reckless and by ignoring basic rules of what is and isn't possible.The murderer is outright invincible, he has broken wrist and cut off achilles tendon and yet nobody can resist him. He wouldn't cease killing everybody in range although this must have brought unwanted heat on him. The special agent doesn't care about casualities although he tortures the murderer in the name of his wife (or fianceé?), which is totally inconsistent and makes no sense. The police is totally inept and don't get me started on the victims behavior.After killing the first "release" the whole plot became ridiculous and messy, the violence pointless and as the motivations and deeds of the characters were revealed as fantastic, stupid and inconsistent, I stopped caring about the movie completely and was just waiting for the end, which came way slower than I hoped for. All in all, huge dissapointment.

It wasn't anything special but it had it's moments. Definitely a good quality movie and worth a watch if you're into crime dramas. Would I watch it again? Maybe. I liked a few parts of the movie more than others and they'd probably be worth another watch through at some point in the future.