Fred Brounian and his twin brother, George, were once co-CEOs of a burgeoning New York City software company devoted to the creation of utopian virtual worlds. Now, in the summer of 2006, as two wars rage and the fifth anniversary of 9/11 approaches, George has fallen into a coma, control of the company has been wrenched away by a military contracting conglomerate, and Fred has moved back in with his parents. Broke and alone, he’s led by an attractive woman, Mira, into a neurological study promising to give him "peak" experiences and a newfound spiritual outlook on life. As the study progresses, lines between the subject and the experimenter blur, and reality becomes increasingly porous. Meanwhile, Fred finds himself caught up in what seems at first a cruel prank: a series of bizarre emails and texts that purport to be from his comatose brother.