
The Korean drama S LINE has successfully captured attention since its first episode aired on July 11, 2025. With a genre of psychological thriller infused with fantasy elements, S LINE tells the story of a glowing red line that appears above each person's head, indicating their history of intimate relationships.
Han Jiwook (Lee Soo Hyuk), a charismatic detective, begins to unravel the mystery of a serial murder case with the help of special glasses that can display the S Line. Alongside Shin Hyunheup (Arin), the only person who can naturally see the red line without any tools, and Lee Gyujin (Lee Da Hee), a high school teacher harboring dark secrets, this story combines tension, intrigue, and the most hidden human emotions.
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