Quillian Watson is approaching the age of freedom and autonomy. But before she can celebrate, she and Dr. M--the human -mechanist with whom she's apprenticing--lose a child patient brought in for a mechanical arm. While the aftermath leaves her tools bloody, it tarnishes more than the brass-clad operating room. One misspoken word corrodes what's left of Quillian's idealistic world, and she begins to doubt who she knows to be good...