Missing Noir M (2015)

Both deal with murder mysteries and a main character who is dealing with an internal problem. Both MC's are also extremely intelligent.

God's Quiz deals with the autopsy/science side of the mysteries while Missing Noir M is the law/detective side, but both dramas are really detective dramas.

Love both!

Both focus on finding and solving missing person cases. Both main character have some trauma. If you loved the detective and mystery elements in this its a good watch. Missing Noir M is only 12 episodes so it is a short drama.

Both are dark, mysterious dramas, with plot turning upside-down; great cast, more 'adult dramas'

Thriller by the same OCN. It has a similar atmosphere also the main detective is also like a genius.

If you're looking for another crime drama. This is the one! Signal is more of a thriller, while Missing noir is more of a Twisted mystery Drama with Thirller and suspense sprinkled on top. And by twisted, I mean dark and well thought out murders that are memorable to me to this day. They take leads from very small evidence which I couldn't have thought of. Very unpredictable. Side note:There is no supernatural element to it so its pretty realistic

Both Missing Noir M and Through the Darkness are about investigations and solving crimes and Serial Killers

I recommend this both drama because , Male lead and Female lead
try to solve problem
In one drama explosion and another student murder/suicide

Both the dramas revolve around a genius who has a troubled past.

Adult serious thing.
Both have dark, bitter, cruel atmosphere.
Must watch for noir lover.

Gil Soo-Hyun after graduating Harvard University worked at the FBI for 10 years. Afterwards, he decided to come back to South Korea. He now works as the leader of the Special Missing Persons Unit investigating mysterious case of serial killer.

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.

A smart detective is paired with a law-abiding cop. Through each episode their friendship develops and they become a cute pair.

-genius investigator with somewhat dark past and unpredictable nature
-psycho criminals in almost every episode
-corpseless murders as vital point
-good plots and mysteries
-a beautiful detective as eye candy <3

but of course IRY lighter than M :D

Both series have a similar style (plus, the working title for M was so close to TEN that I thought it would be a spinoff at first), both series have a similar atmosphere while TEN is actually about murder cases compared to those cases about missing people.
Also the director Lee Seung-young was involved in the creation of both series, and both are OCN Original series (OCN is a channel with lots of experience when it comes to crime series)

Both of them are really exciting, every episode is different, but there is main plot somewhere hidden. And even main characters have quite good stories to share :D