Both are dark and gritty dramas with a similar feel to them. They both have unconventional protagonists who are criminals/involved in the underground criminal world and deal with organized crime, are filled with action, and contain interesting plot twists throughout the series.
written by the same writer, both dramas are filled with action and the dark side of the society. my beautiful bride is more a romance and is more of a single man show, where as cruel city makes you root for more than one single character. in my opinion cruel city has a much more superior storyline but my beautiful bride is also a worthwhile watch.
Even though Cruel City is about undercover cops it's also about going up the hierarchy of the underworld and getting revenge. Last is also about climbing up the ladder and also about revenge. But most importantly, both dramas will make you wonder what is good, what is bad, what is the right thing to do and what is justified,