Celia's body is not her own, but even her conscious mind can barely tell the difference. Living on the cutting edge of biomechanical science was supposed to allow her to lead a normal life in a near-perfect copy of her physical self while awaiting a cure for a rare and deadly genetic disorder. But a bioandroid isn't a real person. Not according to the protesters outside Celia's house, her coworkers, or even her wife. Not according to her own evolving view of herself. As she begins to strip away the human affectations and inhibitions programmed into her new body, the chasm between the warm pains of flesh-and-blood life and the chilly comfort of the machine begins to deepen. Love, passion, reality, and memory war within Celia's body until she must decide whether to betray old friends or new ones in the choice between human and machine.