Realtime Interrupt

From back cover Bantam paperback January 1996: When Joe Corrigan awakens in a Pittsburgh hospital, he discovers that his life no longer exists. As director of the supersecret Oz Project, he volunteered himself as one of the first human inhabitants of a computerized virtual world indistinguishable from reality. But the Oz Project failed, and Joe has lost everything: his wife, his friends, his colleagues, hist past. Now he finds himself in an unfamiliar world where nothing is quite as it should be. Only Lilly, a fellow Oz volunteer, is different from the others-- somehow more real. Together, they learn the terrifying truth about the world they inhabit. But can they discover a way to get out alive?