The "Special" edition of the soundtrack includes a vast array of instrumental tracks (BGM) that build the drama's intense psychological atmosphere. Composed by artists like , Park Yoon-seo , and Lee Joon-wha , these pieces are often characterized by their eerie, discordant, or suspenseful arrangements.
: As the drama's opening theme, this track sets a visceral, questioning tone that reflects the central mystery. Various Artists Blind (Original Television So...
: The titular track emphasizes the theme of obscured truth and the literal and metaphorical "blindness" of the justice system. The "Special" edition of the soundtrack includes a
: A melancholic indie-rock piece that echoes the psychological isolation of the protagonist, Ryu Sung-joon. : The titular track emphasizes the theme of
: Pieces such as "Nightmare," "Shadow," and "Psycho Killer" utilize dissonant textures and minimal melodies to evoke fear and the presence of the serial killer.
: Tracks like "An Old Wound" and "Lonely" offer rare moments of quiet sadness, grounding the thriller elements in the characters' personal pain. Narrative Cohesion