Both females end up in prison their husband's are big jerks. A lot of drama going on and want for justice. In Secret female lead has harder time with life back from prison. (my personal opinion but Secret is way better even if it is older kdrama I recommend it a lot)

Ah, don't we love loops?
People not knowing they are dead, bumping in diff dimensions with different people that also died there. (died, disappeared).
Honestly both are masterpieces. A+
Guimoon more scary horror
House of the disappeared has rather touching story than horror

similar plot I think Korean movie was inspired by this thai one
ghosts shoots movie and is played on theater where everyone dies

So I am surprised nobody added these two yet because they are very similar.
Girls and Guys are stuck in one place together as they have to build relationships, get some kind of missions to help them interact.
Both have people watching it and commenting the actions which makes it even more entertaining.
As I waited for Single's Inferno new eps I discovered this and it was great to point I went back on Love Catcher 1st season too because 3rd is still airing.
However I think 3rd season is more alike to Single's Inferno maybe because it has similar vibes since they both are airing on 2021

We get to see a little from each character's perspective
love playlist has more characters but the main idea is similar
both soft stories

The mystical vibes are on point
- though gu family book is more mystical and based on mythology with the gumiho, the effects still give me similar vibes with eye colors and action/fight scenes that involve special effects.
- the romance between the two leads grow in proper pace, not rushed and you can feel the connection so I really enjoy this in both of stories

If you like "Nevertheless" you would enjoy ''I need romance'' it shows more realistic sides of romance and more mature than your average kdrama.
It focuses on few females and their romance lives (they are all friends) and as I see in nevertheless so far it will also have side couples as well, so I recommend.

About three friends and their (romance) lives.
I Need Romance more adult compared to How to be Thirty but both enjoyable comedies.

this one isn't horror but the concept is very similar.
someone gets kidnapped for purpose to put up a show for rich people, being watched by cameras and streamed.

I am surprised nobody recommend this they have very similar feeling
the story is around the three women and their lives, the romance.
Each of them are different and are in great relationship like sisters.
Both stories are funny and deep at the same time.
You can relate to scenes thinking 'same' or 'mood' or are just reminded of you and your friend.
Both are easy to watch.
I also recommend other seasons of I need romance (it isn't continuing series but same type series with different friends and stories).

I am surprised nobody recommend this
it gave similar feels since ep 1
both family series and children make it cute
while there is still some seriousness with the main couple and some romance

similar plots actually in short:

the location is also school
students get killed by psycho teacher

yet both movies are interesting and casts are great