I had to lump these two together for a couple of reasons. 1) both have two of the hottest actors in the game in Korea: Won Bin (The Man from Nowhere) & Kang Dong won (Haunters) and 2) both have similar themes of revenge and taking horribly extreme actions to enact revenge.
Nowhere is the better movie because it features the most ruthless revenge assaults/tactics this side of Oldboy, and....it's a tearjerker! I teared up thrice! All because they threw in an adorable little girl that Won Bin has to save cuz....he's a great guy. Unless he feels like killing you. Part kidnapping, part action, part mystery, part revenge....it's got it all. Tons of drama too, for that drama fiend in us all. God bless Korean movies for that.
On the other hand, Haunters is kind of a superhero/supervillain type. In some ways it reminds me of Unbreakable, but not quite as good. However, the idea that the superhero doesn't quite know he's a superhero until later definitely makes me think Unbreakable. The movie's kind of goofy, and has some shitty slapstick courtesy of the main character's (played by Go Soo) two foreign friends (one is from Ghana and the other from Turkey. Both are alright actors. I have no idea what their backgrounds are, but they're fairly fluent in Korean). But, it's fun seeing all the mayhem, and Kang Dong won walking around making people do crazy stuff just by using his eyes (he's got some kind of telepathy going on) is pretty fun. All in all, they're both fun, and worth watching if you like Korean movies and action and preposterous stories. Recommended.
The pics at the very top are The Man from Nowhere (left), and Haunters (right).