S Line
S Line
Now Showing

S Line

"Social. Sex. Secrets."

7.5
Yr 2025
Status Ended
Sci-Fi & Fantasy Drama Mystery
Series Brief

Overview

A young woman with the ability to see mysterious red connections between lovers discovers her secret gift is no longer unique when special glasses granting similar powers appear on the black market.

Why fans love it

S Line approaches the standard detective pursuit with a speculative twist. The narrative centers on a reality where intimate connections are physically manifest as cords. When these once-private threads suddenly become accessible to anyone with a pair of illicit glasses, the show moves past romance and into a tense study of surveillance and social disorder.

The series is based on a webtoon and relies on shocking developments to escalate its central mystery. Unlike more sentimental takes on predestined love, the story functions as a grim look at how transparency destroys privacy. Lee Soo-hyuk leads a cast that navigates the rapid collapse of personal boundaries as the black market floods the city with voyeuristic technology.

Featured Players

Cast 21

Shin Dong-mi
as Police Station Woman
1 episode
Cho Han-cheul
as Kim Byeong-Cheol (Eps 3)
1 episode
Lee Soo-hyuk
as Han Ji-wook
ARIN
as Shin Hyeon-heup
Lee Da-hee
as Lee Gyu-jin
Lee Eun-saem
as Kang Seon-ah
Kim Dong-young
as Oh Dong-sik
Lee Gwang-hee
as Joon-seon
Lee Han-joo
as Yoon Ji-na
Woo Ji-hyun
as Jung-woo
Nam Kyu-hee
as Kim Hye-yeong
Oh Woo-ri
as Lee Kyung-jin
Oh Seung-jun
as Lee Ji-won
Kim So-young
as Choi I-seo
Park Seong-il
as Bang Seong-jin
Lee Ga-sub
as Oh Jung-min
Park Ye-ni
as Hee-won
Jeong Jae-kwang
as Bartender
Jang Sun
as Hyeon-heup's Mother
Oh Ah-yeon
as Kwak Chae-rin (Eps 3)
1 episode
Show all 21 cast
Lee Sang-hee
as Kyung-Mi (Eps 3)
1 episode
Production Board

Crew

Director
Comic Book
Keyword Cloud

Keywords

shocking based on webcomic or webtoon