K-Dramas Like S Line: If ‘S Line’ had you glued to your screen, chances are it wasn’t just the mystery, it was the feeling. ‘S Line’ is one of the most talked-about Korean dramas of 2025. The way those special glasses revealed strange red lines connecting people who had been intimate, the chilling moments of discovery, and more such secrets that should not become public. It’s equal parts crime thriller, supernatural fantasy, and psychological drama.
So, if you’re craving more dramas, here are some must-watch K-dramas that carry similar vibes, blending strange powers, hidden truths, and plenty of tension.
Why These Picks Feel Like S Line
What makes ‘S Line’ so addictive is its blend of the supernatural, strange powers, with crime-solving. ‘S Line’ is about, “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”, according to IMDb.
The K-dramas below share that DNA, whether it’s seeing what others can’t, uncovering deadly secrets, or navigating the blurred lines between gift and curse.
Top 4 Korean Dramas Like S Line
1. Aftermath
In this short but sharp web series ‘Aftermath’, a teenager survives an accident and develops a terrifying gift, he can see red or blue eyes in others. Red means the person will soon die, and blue means they’ll kill someone. According to the Netflix synopsis, “Quiet teenager Yong Ahn-dae becomes an unlikely hero after a near-fatal accident gives him the ability to detect murders before they happen.”
Like ‘S Line’, the tension builds on visual clues that the rest of the world can’t perceive, making every interaction a ticking clock.
2. Connect
‘Connect’ is a pure sci-fi horror K-drama that you must watch, starring Kim Dong-jun and based on Kim Sun-kwon's webtoon of the same name. A man loses an eye to organ traffickers, only to discover that it’s been transplanted into a serial killer.
According to IMDb, “A man is kidnapped and one of his eyes is removed by a gang of organs hunters and transplanted into a serial killer. The unwilling donor now has terrible visions as he witnesses terrifying attacks on the residents of Seoul.”
3. Signal
‘Signal’ was inspired by real-life criminal incidents in Korea. While it’s not about red lines or magical glasses, Signal delivers the same rush of uncovering hidden truths. ‘Signal’ is about, “A cold-case profiler in 2015 and a detective in 1989 work together to solve a series of related murders spanning three decades using a special walkie-talkie to communicate with each other”, according to IMDb.
Together, they solve crimes across decades, altering timelines in the process. It’s intense, emotional, and impossible to stop watching.
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4. Memorist
In Memorist, a detective can read people’s memories simply by touching them. ‘Memorist’ is about, “A detective with supernatural power and a genius profiler join forces to hunt down a mysterious serial killer”, according to Prime Video.
This ability makes him brilliant at catching criminals, but it also drags him into dangerous territory where knowing too much can make you the next target. The show has the same investigative urgency and supernatural hook that ‘S Line’ fans will love.
If ‘S Line’s blend of supernatural ability and crime-solving pulled you in, these dramas will keep the momentum going. Each one offers a fresh twist on the idea of seeing what others can’t, and the moral and emotional fallout that follows.
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