In the surveillance-drenched society of 'Gnomon,' democracy has been perfected to the point where transparency is total, leaving no part of life private. When Diana Hunter, an anti-establishment figure, dies under interrogation, inspector Mielikki Neith is tasked with uncovering the truth. Diving into neural recordings, Neith discovers not just Hunter's memories, but a mosaic of personas including an ancient alchemist, a futurist intelligence, and a mystic financier. As Neith wades deeper, she encounters unexpected reflections of herself and unveils a reality-bending conspiracy that threatens the very fabric of their world.