For centuries, the greatest musicians in history have been linked to the same story. A deal made in the dark. A talent no human being should possess. A price paid in full. This is the story of the Devil in Music. From Niccolò Paganini — the violinist so impossibly skilled that audiences believed he was guided by a demonic hand — to Robert Johnson, who walked to a Mississippi crossroads at midnight and came back able to play anything. To the Norwegian black metal scene and Mayhem, where the darkness stopped being a performance. And underneath all of it — two notes. Six semitones apart. A sound so unsettling the medieval church banned it. They called it Diabolus in Musica. The Devil in Music. This documentary asks what actually connects these stories. The answer is stranger than the myth. Chapters: 0:00 The Basement 6:04 The Devil's Dream 9:00 The Devil's Violinist 14:22 The Crossroads 20:14 When Someone Goes Looking 27:14 What It Actually Is