Lira, the only survivor of a secret bioweapon program, falls from a research tower with her memories shattered and a living symbiote inside her. Evelyn Carter, a terminally ill tech heiress, takes her in as a possible cure and keeps her under surveillance. Their dangerous bargain becomes love as they uncover illegal experiments, fight a brother plotting to steal the company, and expose the scientist who created—and tortured—Lira.
