Debuggers have one purpose, to obey their masters. The implants in their heads ensure they can't forge their own path, can't disobey or even fall in love. But after ThreadBare's master is assassinated, his implant goes haywire, terrorizing his mind with unpredictable pain. He's in love despite the implant, with Damali-a woman who's disappeared from his life. In addition, he hears rumors of a plot to end debuggers forever. To end his single purpose...