Should in example sentence
Don't get me wrong, the fact that this film barely has a plot at all is really one of the best things about it, but I think Denis took it about one degree farther than it needed to go and consequently the film does flirt with incomprehensibility, and a few key plot points should have been clarified somehow (like that the main character goes to South Korea to get his heart transplant, instead of just showing him there all of a sudden without any explanation of where he is or why he is there).