You're All Surrounded (2014)

Both are investigative and have some romance, this one takes place mostly in an airport though.

Both dramas have the premise of someone going ‘undercover’ to solve an old case, and with false identities involved. In You’re all Surrounded it’s more planned to happen while in Doubtful Victory it’s more by accident, but both MCs are personally involved in the old case and solving it is/becomes their goal. Both dramas also have a female lead that knows the male lead from when they were children, and suspects his identity. There’s more romance in You’re all Surrounded, though.

Both have a horrible crime and revenge Both make you excited and watching it nonstop Both are my favourites and have great actors ????

They are both about a young boy who is wronged by the law. In both cases the boys have super-abilities (one is more ..fantastical than the other). Both stories also contain an older noona through whom the boy's goal of bringing the criminal to court is accomplished. This noona also serves as the love interest. There are even parallel scenes. In other words, they are pretty much the same, except for casting, music, and circumstantial differences. Soo Ha and Dae Gu would find they have waayyy tooo much in common, if they met. Oh, but there is one notable difference: Hye Sun is bold and sassy throughout the show, Soo Soon only manages to be bold and sassy while she's still a teenager. That side of Soo Soon dies out once she becomes an adult.

These 2 dramas are not related by having the same story, but for following one of the same concept: detectives and you can also see action and mystery in both. Let's not forget that both dramas are including characters with impressive stories.

-ML investigating what happened to his family member in the past -FL help the ML in their investigations -both have similar vibes If you like either one, give the other drama a shot for sure!

The plots are not exactly alike, but the tones and the tragic type of stories were similar. The workplaces were also similar. The flashbacks the MMCs experienced were also similar.