Sinal (2016)

Both dramas have a similar concept. Both main characters use a device to contact a person from another time. In Kairos, it is a person from the future whereas in Signal it is a person from the past.

Same male lead. Has same vibes just without the time travel that is in signal. Crime-solving in pre tech times

If you like drama Signal, there's a huge probability that you will love drama this drama! :D

SIMILAR IN:
+ Strong Characters (Both ML & FL)
+ Good Mystery
+ Supernatural Elements
+ Corruption
+ Friendships
+ No Romance

Both dramas are absolutely amazing! They have amazing cases and good acting!

To be honest, the good detective was the kdrama that made me join this world of police/detective/psychological and investigation dramas, it is really really good and nothing happens as you expect (or wish, sadly). A happy ending but not for every one of the characters that are good people, I hope you will like it like I did!

Both are hardcore criminal psychology type drama but Evil Minds is extremely underrated. If you want a crime plot that is not predictable then try this one.

While very different in genre and tone, both Signal and Tokyo Girl tell stories of people using a device to communicate with someone in the past, so the characters build up their relationship/friendship despite not being together in person.

The series Signal is about a police profiler in 2016 who finds an old walkie-talkie that he uses to communicate with a detective in the 80's, while the film Tokyo Girl is about a girl in 2008 whose phone ends up with a boy in 1912. Both stories involve the two main characters not meeting for the majority of the story, or not at all.

Again, they are from two different genres, so it's not so much that you'll like one because you like the other. It's just that they share this common theme that you might want to see in something else.

Both drama are somewhat similar and have a great plot ....if u like signal highly recommend to watch "stranger/secret forest"

It's also a crime drama that develops quite nicely and very unexpectly. There are many twists and surprises.

One is a movie & one is a drama, and the genres are very different, but both have a lead character utilizing a communication device (walkie talkie & CB radio) to have conversations with someone in the past.

Director Quentin Tarantino named it, along with Bong's The Host, as one of his Top 20 favorite movies since 1992 This excellent movie (who ages really well like wine:) must have inspired this drama's author in a way It is even said that Signal is the Tv adaptation of Memories of Murder This film deals with the Gyeonggi serial rape and murder case that detectives invistigate on the first 4 episodes of Signal This movie has an amazing cast (Song Kang-HO is brilliant!) and cinematography The rest of the cast is keeping up brilliantly and the ending leaves you speechless The real life case, apparently and sadly the first serial killing case reported in Korea's history was never solved and reached a statue of limitation in 2006 unlike in Signal

- Both story revolves around detectives
- Solving cases in both
- In both drama, trying to save someone's life who died
- In signal they can talk through a walkie talkie, but in Train they can travel to the parallel world
- Same vibes
- Catching the killer
- Both ends with a cliff-hanger

The leads are very determined to catch criminals. Cha Soo Hyun and Shim Eun Seok are kind of similar considering their bad memories with criminals in the past.

Right from the first episode onwards "Confession" gives off a "Signal"-like vibe.
We have 2 very similar male leads, with a nearly exact personality and background, a team that is as similar as can be, characters and even storylines that are very similar to each other.
If you have enjoyed one, there is a high chance you will enjoy the other.