#1
Stranger
An emotionless prosecutor and a warm-hearted detective expose the rot inside Korea's prosecution service.
Watch on: Netflix
Editorial List
Best Asian Mystery Dramas
Twisty, atmospheric mysteries from the studios that perfected the slow-burn whodunit.
This list is curated by the DramaSeek editorial desk and ranks 20 titles. Each entry below is a real, fully reviewed drama or film with its own dedicated page — synopsis, cast, ratings, and where-to-watch information. Inclusion isn't decided by audience rating alone: we factor in cultural footprint, craft, rewatchability, and contribution to the genre.
If you're new to the category, start at #1 and work your way down. If you're a returning fan, scan the list for titles you haven't yet caught. For broader recommendations beyond this list, see our long-form drama discovery handbook.
#2
The Long Season
A retired truck driver, his brother-in-law, and the cabbie they grew up with reopen a cold case from a long-vanished northeastern industrial town.
Watch on: iQIYI
#3
Someday or One Day
A grieving Taipei woman is accidentally transported back to 1998 and into the body of a high schooler with her face.
Watch on: Viki, Netflix
#4
Signal
A walkie-talkie connects a present-day profiler with a detective in 1989, and together they solve cold cases.
Watch on: Netflix, Viki
#5
Beyond Evil
In a small town haunted by a cold case, two detectives — one local, one Seoul outsider — circle a killer who may be one of them.
Watch on: Viki, Viu
#6
When the Camellia Blooms
A single mother running a small bar in a coastal town finds love with the local cop while a serial killer closes in.
Watch on: Viki, Netflix
#7
The Long Night
A man brings a corpse onto the Beijing subway, in plain view of the cameras, to force the city to read a decade-old file.
Watch on: iQIYI
#8
Healer
A reclusive night courier with parkour skills and a tabloid reporter pull on a thread that leads back to a 1980s political conspiracy.
Watch on: Viki, Netflix
#9
Tree With Deep Roots
King Sejong races to invent the Korean alphabet while a secret society plots to murder his most trusted scholars.
Watch on: Viki
#10
The Bad Kids
Three children accidentally film a man pushing his in-laws off a cliff — and decide to use it.
Watch on: iQIYI
#11
Day and Night
A pair of identical twins — one a brilliant cop, one a fugitive — share one police badge to survive.
Watch on: Netflix, iQIYI
#12
Unnatural
A forensic pathologist works for an underfunded institute investigating sudden deaths the system would prefer to forget.
Watch on: Viki
#13
SKY Castle
Inside an elite Seoul neighborhood, mothers go to terrifying lengths to get their children into the top Korean medical schools.
Watch on: Netflix, Viki
#14
Mother
A teacher discovers a student is being abused and impulsively kidnaps the child to start a new life.
Watch on: Viki
#15
Mysterious Lotus Casebook
A retired wuxia legend now travels with a portable wooden cottage and a younger swordsman, solving cases.
Watch on: Netflix, Viki
#16
Word of Honor
A retired imperial assassin meets a sect leader on the road and a partnership begins between two dying men.
Watch on: Netflix, Viki, YouTube
#17
Quartet
Four amateur string-quartet musicians share a winter house in Karuizawa and slowly each reveal a secret.
Watch on: Viki
#18
Manner of Death
A small-town Thai forensic doctor and a mysterious teacher investigate a series of suspicious deaths.
Watch on: Viki
#19
Confession
A defense attorney whose father was framed for murder takes only the cases the rest of Seoul refuses to touch.
Watch on: Viki
#20
Reset
A college student and a video-game tester are stuck reliving the same Beijing bus explosion until they find a way to stop it.
Watch on: WeTV, Viki
How we rank these titles
DramaSeek's editorial lists are not pure aggregations of user scores — those are useful but tend to flatten cultural context. We factor in the show's audience reception, its place within the genre's history, and how it stands up to a rewatch. We also weight more heavily for titles that are still legally streaming in major regions, since this is a where-to-watch guide first and an archive second.
The list above is updated as new titles enter the catalogue and as streaming-rights deals shift. Bookmark it and check back periodically for the current state of the field.