First let me give you my honest overall thoughts on this movie : even after several rewatches it remains one of the best thrillers I've seen. It's dark, it's brutal, and you will never get tired of Ji Chang-wook, because he's perfect for this role!

This movie was so gripping and real adrenaline rush the whole imprisonment aspect (for angst lovers this movie is a must watch) especially how dark they got at times it was all excellent, even the hallucinations.

I liked the premise, a bunch of gamers, of different ages and genders band together to fight for the main lead, who is wrongfully accused of a murder. But the thing is the first part feels different from the second half almost. I feel like they were trying to get the feel of shows like Gotham because the villain was clearly Penguin inspired but it wasn't executed as well.

And it's not exactly realistic because the hero will frequently do insane action after getting the kind of injuries that should have got him completely unable to do anything. But Shim Eun Kyeong looks hot!!! But MOST action thrillers movies or books, Hollywood or otherwise, do this, they don't do realistic injuries or realistic anything, and this is one of those. My point is I'm not an idiot lol I see plot holes and other issues but for movies like this where they cast my favorite actors, I can easily overlook all that. Every movie is different.

But I have to say that prison part was very messed up, so might not be for everyone.

Anyway, so yes, if you can deal with the darkness, this is an excellent watch.