Critics called it nihilistic. Fans called it perfect.
While the film does not officially feature any Mongolian music or throat singing (the "heleer" is likely a distorted synthesizer or a Korean pansori chant), the feeling is real. So go ahead. Turn off the lights. Play the film. And when you hear that low, vibrating growl in the darkness—that is the devil you saw. And he sounds like a Mongol horseman at the gates of heaven. If you enjoyed this, search for "Mongolian throat singing for meditation" or "I Saw the Devil vs. The Man from Nowhere" next. Just don’t whistle that tune from the taxi cab. i+saw+the+devil+mongol+heleer
Here is the specific alleged link: