where every man, woman and child in the universe has been downloaded into a "cortical stack" that sits in the spine and runs whatever body it's attached to, whether it be the body a person was born in, a genetically-engineered and boosted custom form-- or someone else's body entirely.
In the world of Richard K. Morgan's "Altered Carbon", Takeshi Kovacs is an ex-envoy (think well respected super-soldier) that ends up caught in the web of a massive conspiracy. . .Read the rest of the review here: http://hubpages.com/hub/Altered-Carbon