After nuclear war Earth grew into the desert, covered by a radioactive dust. Not many remaining people drag pitiful existence in tumbledown cities. Rick Декарт, professional hunter, gets a task to find and destroy a few андроидов running from an external colony to Earth. But gradually does Rick begin to be set by a question: and how so андроиды differ from people? And where a that border lies, that them does divide?Cult novel from a surprizing writer-philosopher - Филипа К. Dick!A book was also published under the name "Hurrying on a razor-blade".