I read here that this is a sort of follow up to another movie. I haven't seen this other movie (made over 10 years prior to this one), but I never felt like this could not be enjoyed as a standalone. So while I can't actually tell if there are some characters who are overlapping in this and the other movie, I can say that it made sense nevertheless and it tells the story of our main protagonist.
Now I don't actually know the game that is being played in this. I reckon it is very well known in South Korea and other parts of the world. So while I don't completely understand everything that is going on, that is not really necessary. For some the level of violence may not feel entirely necessary, because it is quite graphic at times. There is also a small level of nudity, if that bothers you.
Other than that, this is more about the thrill of gambling/playing rather than anything else. And how to trick people "properly" - uneven in its approach it may be, but there is also a lot to enjoy
Now I don't actually know the game that is being played in this. I reckon it is very well known in South Korea and other parts of the world. So while I don't completely understand everything that is going on, that is not really necessary. For some the level of violence may not feel entirely necessary, because it is quite graphic at times. There is also a small level of nudity, if that bothers you.
Other than that, this is more about the thrill of gambling/playing rather than anything else. And how to trick people "properly" - uneven in its approach it may be, but there is also a lot to enjoy