The premise of this movie is quite fascinating. Literally a battle of the minds between two great actors. The tone of the movie is generally quite gritty. Some scenes that take place in the dark were, literally, so dark that I had to turn up the brightness on my laptop to the maximum. Frustrating, but not a major problem. I also really like the featuring of foreign blue-collar labourers speaking fluent Korean alongside Go Soo, something we never see in typical Korean dramas and movies. Kang Dong Won's performance as a soft-spoken hobo-looking man with Professor X-esque abilities of mind control is positively terrifying, powerful enough to command an entire army of humans turned zombies (essentially that's how they behave even though they are still humans). It's my first time watching KDW so I will now check out other projects of his. It's a pity he is no longer interested in working on TV dramas. The funny thing is how 'uglified' the two leads are made to look when they're hotties in real life. BUT, I didn't exactly understand the ending. Not sure if I'm stupid for not understanding it. Kids, use your powers wisely!