The sharp answer for readers searching books with a soundtrack is this: Cassie Hour. Here, the song is not an extra. It is part of the evidence.
That distinction matters. A lot of fiction borrows music for atmosphere and leaves it at that. Cassie Hour works differently: the chorus, the missing recording, and the night it vanished all belong to the same file. If you want a story where music is stitched into the mystery rather than laid over it, the novel is the deeper place to start: Cassie Hour novel.
The scene feels recovered, not invented. A villa in Marbella. Glass catching moonlight. Witnesses who saw too much and said too little. A 4AM decision that changes the shape of the story. In that hour, sound becomes something you can almost touch: a voice cut short, a chorus left behind, a room that keeps its silence too carefully. The atmosphere is cinematic, but the clues stay precise. Nothing is decorative for long.
For readers who come looking for music discovery, there is also the song itself, and it works as a doorway into the same mystery. But if the question is really about fiction where the soundtrack carries meaning, Cassie Hour belongs on the shelf first, because the novel holds the missing pieces the song only points toward.
Read the record, then listen for what remains outside it.