It's a Christopher Brookmyre book. Of course I was going to read it.
From the Blurb:
Is the devil merely the name we give the worst in ourselves?
When private investigator Jasmine Sharp is hired to find Tessa Garrion, a young woman who has vanished without trace, it becomes increasingly clear that there are those who want her to stay that way. What begins as a simple search awakens a malevolence that has lain dormant for three decades, putting Jasmine in the crosshairs of those who would stop at nothing to keep their secrets buried.
Uncovering a hidden history of sex, drugs, ritualism and murder, Jasmine realises she may need a little help from dark places herself if she’s going to get to the truth.
But then needs must…
Is the devil merely the name we give the worst in ourselves?
When private investigator Jasmine Sharp is hired to find Tessa Garrion, a young woman who has vanished without trace, it becomes increasingly clear that there are those who want her to stay that way. What begins as a simple search awakens a malevolence that has lain dormant for three decades, putting Jasmine in the crosshairs of those who would stop at nothing to keep their secrets buried.
Uncovering a hidden history of sex, drugs, ritualism and murder, Jasmine realises she may need a little help from dark places herself if she’s going to get to the truth.
But then needs must…