The future of medicine came at a cost.

Twenty-five years ago, a revolutionary nanotechnology was developed to cure all illness. From cancer to blindness, it promised a world without disease. Now, 90% of the population has the nanos flowing through their veins, and humanity has never been healthier. But Detective Sin Cavenaugh knows the truth. The tech that saved his sister also killed her.

Haunted by the night he watched her die, Sin is obsessed with a case that seems to mirror her murder. Both assassins were supposedly "cured" of a severe mental illness by the tech. Both screamed they couldn't control their actions. And both worked for the corporation that developed the nanos.

Teaming up with Senator Lily, a politician fighting to expose the corporation's power, Sin uncovers a chilling conspiracy that goes deeper than he ever imagined. The same technology that regenerates limbs and eradicates disease is also a tool for a shadowy cabal to enforce a twisted vision of a perfect society.

As Sin and Lily race to expose the truth, the world around them begins to fall apart. The life-giving nanos are failing, and humanity's health and vitality are suddenly at risk. With a political and physical "cascade failure" threatening to bring the world to its knees, Sin must use his unique resistance to the tech to fight a powerful enemy who can control the very people he's sworn to protect, including the woman he's falling for.