Black (2017)

both have the same screenwriter, both are crime, mystery thrillers.
black ha a fantasy aspect a it deal with grim reaper, whereas mouse so far is not fantasy at all

Black is about a detective possessed by the Grim Reaper. Ha Ram can see shadows of death. These two struggle to save the lives of people, breaking the rules of heaven.

the ML character in Black is seriously giving me Vincenzo vibe, kekeke. he's cold-blooded and ruthless (best at his job), so he doesn't know yet that he's so whipped for her already but we can all see through him LMAO. also the FL character is charming and holds her ground so well next to a more experienced actor than her. Black is better written i believe, because the comedy are more sparse but very well thought out and strategically positioned, rather than in Vincenzo which feels kinda lame and thrown mindlessly into the story to the point of being ridiculous at times.

They have a similar Vibe. If you're looking for something with the same kind of premise, this probably isn't it, but if you felt touched by how the story was told and what feeling it left you with, I'd say these two feel similar to me, to be watched side by side or one after another.

the plot sounds a little similar at some point
Ghosts/Spirits
Two leads in this dramas
Different ways but same purpose
Deaths back to back to cover the truth
Both have Police but in Black the Grim Reaper played the Police role as well
But still it's a watchable Drama

Similar in atmosphere story and chemistry.
About the relationship, both are incompatible entities that work together to save people and solve mysteries.
Wonderful teamwork.
Both are horror comedies.

Similar in - relationship, more like a vibe of the romance, the ending has similar under the theme, both ML are somewhat different in kind from the FL, FL's are strong and grow. Overall it gave me the same feeling watching both.

Grim Reaper falls in love with a human who can see them, love interest has a past history with reapers, in order to correct past mistakes, making choice to banished from all existence or never existing.

In both shows the Male Lead pretends to be someone they are not in order to use the Female Lead. However, they end up falling in love with her and, in so doing, they betray their original mission in favor of keeping her safe.

Both mix cop/procedural and fantasy with a dash of romance.
The tone of Judge from Hell is slightly lighter than Black's but both are fairly similar

Both a supernatural romance..One woman can see the future in her dreams the other can see how someone dies by touching the black shadow that follows that person. There is more but dont want to put in spoilers.

Both are by the same director and are crime shows. Also, both the female leads have a supernatural ability while the male leads are cops. (Black - she can forsee death, Voice - her hearing is more improved)

Black is about a detective possessed by the Grim Reaper. Ha Ram can see shadows of death. These two struggle to save the lives of people, breaking the rules of heaven.

Both dramas are about people who are all connected in mysterious ways and can see the missing dead.
In both dramas, one of the characters is a detective.

Both have body swap and there is area between afterlife and earth
But one is about revenge and normal life whereas the other is supernatural and ghosts.