The Blue Road (2026) official poster
📺 K-Drama Guide · Crime · Mystery

The Blue Road

푸른길 · 2026
🟡 Premieres Nov 20 · 8 eps 🎬 Netflix ⭐ Not Yet Rated 🔞 18+
⚡ Updated · Oct 21, 2026

📋 Drama Overview

The setup, the stakes, and where to watch — all in one place.

The Blue Road (2026) official poster
🎬 Upcoming 2026CRIME THRILLER PICK
The Blue Road
푸른길 (Pureungil) · 2026 · South Korea
WriterCho Yu-jin
DirectorHan Jun-hee
Episodes8 eps
AiredPremieres Nov 20, 2026
GenreCrime · Mystery
Content Rating18+

Netflix
Crime ThrillerSerial KillerKorea-JapanDetective DuoWebcomic Adaptation

A body is found in Tokyo, badly mutilated, with a message written in blood in Korean. Some time later a disfigured corpse turns up in Korea, this time with a message in Japanese. Two police forces end up looking at what may be one serial killer working across both countries. Kim Seok (Son Suk-ku) is the detective on the Korean side, from the Seoul Metropolitan Police Agency’s Mobile Investigation Unit, and Inose (Eita Nagayama) is his counterpart from the Tokyo Metropolitan Police Department’s First Investigation Division.

The Blue Road is adapted from the webcomic Blue Road, a Korean-Japanese co-production, with Han Jun-hee (D.P., Weak Hero Class) directing and Cho Yu-jin writing. It arrives on Netflix on November 20, 2026 with eight episodes, and the first three had a festival showing at the 31st Busan International Film Festival.

Episode Progress 🟡 Premieres Nov 20

⚡ Quick Verdict

Here’s the verdict — no scrolling, no guesswork.

⭐ Worth it?Worth watching for — a cross-border murder case with a strong lead pairing
⏱️ Commitment8 episodes · all listed for Nov 20 on Netflix
💛 VibeDark buddy-cop mystery with messages written in blood across two countries
📺 Skip if…Graphic serial-killer crime is not what you want to spend a weekend on

▶ Official Trailer

🎭 Cast & Characters

The two detectives and the people around the case.

Son Suk-ku as Kim Seok in The Blue Road (2026)
Son Suk-ku
Kim Seok

Lead

Eita Nagayama as Inose in The Blue Road (2026)
Eita Nagayama
Inose

Lead

Kim Shin-rock as Ri Yoon-ok in The Blue Road (2026)
Kim Shin-rock
Ri Yoon-ok

Supporting

Choi Sung-eun as Government agent in The Blue Road (2026)
Choi Sung-eun
Government agent

Supporting

Jung Jae-young as Mysterious man in The Blue Road (2026)
Jung Jae-young
Mysterious man

Supporting

Na Ho-won as Express bus driver in The Blue Road (2026)
Na Ho-won
Express bus driver

Supporting

Bae Geon-hee as Yakuza cell leader in The Blue Road (2026)
Bae Geon-hee
Yakuza cell leader

Supporting

🍿 Where to Watch

Stream The Blue Road on these platforms.

📺 Episode Guide

Recaps that jog the memory, not spoil the ride.

The Blue Road Episode 1 — Episode 1 EP 01
Episode 1
Nov 20, 2026
Coming soon

The Blue Road Episode 2 — Episode 2 EP 02
Episode 2
Nov 20, 2026
Coming soon

The Blue Road Episode 3 — Episode 3 EP 03
Episode 3
Nov 20, 2026
Coming soon

The Blue Road Episode 4 — Episode 4 EP 04
Episode 4
Nov 20, 2026
Coming soon

The Blue Road Episode 5 — Episode 5 EP 05
Episode 5
Nov 20, 2026
Coming soon

The Blue Road Episode 6 — Episode 6 EP 06
Episode 6
Nov 20, 2026
Coming soon

The Blue Road Episode 7 — Episode 7 EP 07
Episode 7
Nov 20, 2026
Coming soon

The Blue Road Episode 8 — Episode 8 EP 08
Episode 8
Nov 20, 2026
Coming soon

🏁 Ending Explained

We’ll break this down in full once the series wraps up.

🏁 Coming once The Blue Road wraps up — we’ll add the full ending breakdown after Episode 8 airs. Check back then, or bookmark this page.

✍️ KDramaWorlds Editor’s Take

Straight talk on whether this one’s worth watching, and for who.

🔎 Cross-Border Case 🩸 Message in Blood 🇰🇷🇯🇵 Two Detectives 🎬 D.P. Director

Most serial-killer stories start with a body. This one starts with two, in two cities, each with a message in the other country’s language. That is a good hook because it forces a Korean detective and a Japanese detective to work out together what the killer wants, and neither can solve it alone. Han Jun-hee made D.P. one of the tightest Netflix series to come out of Korea, and a script like this suits his way of keeping a thriller moving.

The Blue Road (2026) — cinematic still

Son Suk-ku and Eita Nagayama each come from a different film industry, so the pairing carries the cross-border premise on its own. If you want Han Jun-hee’s earlier work with young characters in a different mood, Weak Hero Class 1 is already on the site.

Nothing is out yet, so this is anticipation, not a verdict. The release-date trailer is in Korean, and an English-language one may follow closer to launch; we will swap it in and add recaps once the episodes land.

👍👍👍 BEST FOR 👍👍👍
🔎 Viewers who like detective duos and slow-reveal murder mysteries 🌏 Anyone curious about a Korea-Japan co-production 🎬 Fans of Son Suk-ku or of Han Jun-hee’s D.P.

⚖️ Final Verdict
What works
•A cross-border murder hook with messages in two languages
•Son Suk-ku and Eita Nagayama in the lead roles
•Han Jun-hee directing an 8-episode run

What to know first
•Nothing has been released yet, so this is a preview
•Arrives on Netflix on November 20, 2026
•The current trailer is a Korean-language release-date announcement

Anticipation Pick— A promising crime thriller; the verdict arrives once the episodes do.

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KDW Editor Editorial Team, KDramaWorlds

This review was written and fact-checked by the KDW editorial team — a small group of K-drama viewers who watch every title before writing about it. No screeners, no synopsis-only takes.

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2026 Writing Since
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