The Circle runs everything - all your internet activity in one easy, safe and visible place. No wonder it is now the world's most powerful and influential company. So when Mae Holland lands a job at its glittering California campus, she knows, she's made it. But the more her ideals and ambitions become aligned with those of the Circle, the closer she comes to discovering a sinister truth at the heart of an organization seeking to remake the world in its image . . .