Cormac is a legendary Earth Central Security agent, the James Bond of a wealthy future where "runcibles" (matter transmitters controlled by AIs) allow interstellar travel in an eye blink throughout the settled worlds of the Polity. Unfortunately Cormac is nearly burnt out, "gridlinked" to the AI net so long that his humanity has begun to drain away. He has to take the cold-turkey cure and shake his addiction to having his brain on the net.