Stranger (2017)

They are both serious investigative thrillers. I think if you enjoyed one, you would also enjoy the other.

There are several dramas that fit the image of thriller mystery dramas
Dramas that have a different setup from a normal “cop show”, where the plot movement and story doesn’t follow the book of “cliche dramas”
Also both have great acting

Both have twists and turns to keep you second guessing everything. Both are written cleverly. Trust is an issue, rightfully so.

Both have corruption in law enforcement.
Pride and Prejudice: is faster moving with more action. The prosecutor trying to uncover the man who cover up the murder of her younger brother. She believes it could only have been done by a fellow prosecutor. Eventually she gets help from co-workers to solve this case after realizing it is connected to a couple of other cases that have come across their desks.
Stranger: is developing the story a little more slowly. One cop and one prosecutor work together after realizing they have no one in their own departments to trust. The case that brings them together may be related to higher ups in both of their departments. The prosecutor is unable to feel emotion and is balanced out by the cop who is motivated by her feelings of sympathy for the victims and victims families.

Both the shows have following
Smart male lead
Insider investigation
Corruption
Politics
Wanting justice

Both are about chasing a serial killer and corrupt higher ups.
Worth watching drama.
Chilling thrilling.

Both shows are absolutely gripping and showcase the growth of the unlikely friendship between a cold man and a female detective who knows how to hold her own. Both are trying to solve a case that leads back to corrupt politicians. If you enjoyed one, you'll definitely enjoy the other.

both include lawyers that are cold-blooded and distant. but damn good at there job. has a similar type of investigation in it. both male leads have tragic childhoods

A drama with layers of intrigue, twist and conspiracies where the truth seekers efforts are constantly being blocked or thwarted by the evil enemy and their own.

Mostly in the cinematic directing style, the dense plot, the non-romance nature of the show, and the emphasis on detailed directing and acting.

saya suka sekali alur ceritanya karena susah di tebak dan itu membuat saya tidak bosan menonton drama ini. akting para pemerannya juga sangat bagus terutama pemeran utamanya.

recommended banget deh ♥

Both are crime solving thrillers with no explicit romance or action -- where the lead is an extremely intelligent detective, where the characters live in the world of injustice but still believe in people.

If You like this Drama, you will like Stranger(1&2) too.
try this, it worth of your time.
Smart Male Lead
Calm Male Lead
Strong Female Lead
Police Officer
Thriller, Mystery, Crime, Investigation

In stranger we have an upright prosecutor ML who is emotionless due to a condition and a police officer FL who is strong and independent. While in connection there is an upright police officer ML who is struggling with drug issues and a reporter FL who is bold. There is no cringey romance in both but the level of understanding between the leads is amazing. The vibe of both dramas are similar and you keep asking who might be the culprit throughout the story.

Dong Jae being the spin-off of Stranger, I would suggest watching seasons 1&2 of Stranger first to get a good grasp on his character.