A photographer with total color blindness must uncover the truth behind a brutal murder that connects San Francisco's sexual underground to its elite. Kay Farrow, whose achromatopsia sharpens her photographic eye, finds herself drawn into the investigation of Tim Lovsey's death. The police are eager to close the case, but Kay's intuition tells her it's linked to an older, unsolved serial murder. Her pursuit of justice forces her to navigate the city's disparate worlds, from its most privileged enclaves to its hidden sexual underworld, believing the killer operates at the intersection of these worlds.

The premise sets up a compelling mystery with a unique protagonist whose visual impairment becomes an asset. The narrative structure appears designed to build suspense by contrasting disparate social strata and exploring dark themes. The inclusion of an audiobook format read by Lorelei King suggests an emphasis on atmospheric storytelling. The plot is likely to engage readers who appreciate intricate crime procedurals with a psychological edge.