Another media writer who has skimmed a couple of science books and thinks he has an astounding original idea -- because he's too young to have seen _Outer Limits_ and _Twilight Zone_ and apparently doesn't read SF. Slam-bang action, piled-up improbabilities ("why does X happen?" "Because otherwise the story would collapse."), violence for violence's sake (what does the Evial Corporation think it will actually accomplish?) and no explanation for a college physics teacher not realizing a lot earlier what has happened to him. Unbelievable hairsbreadth escapes, unbelievable ending (not survivable), emotions mostly pulled out of a Hollywood file without being made real.