In a world where humanity is segregated based on life span, an ambitious university student unwittingly fallsfor a man who has just one year left to live and must fight both science and societal norms to save his life.Stamped with a blue ring on their shoulder "Rats" find themselves living fast and loud in a cash economy, whilst "Clean Skins" enjoy life expectancies into their nineties, perusing a life of academia and industry.Amid this fractured world is Josephine, a driven Clean Skin studying political science at a top university. Her mission is clear: bridge the chasm between the Rats and Clean Skins through relentless activism and reform.Yet everything changes when Josephine meets Kit at a party. Their connection is instant and intense, but their budding love faces a severe test when Josephine uncovers the truth about Kit, he is in fact a "Rat" with only a year left to live. Determined to save Kit and defy the fate that separates them, Josephine embarks on a perilous mission, rescue the man she loves whilst trying to change the world.