Sci-fi drama written by William Gibson, based on his short story. In the 21st century the information superhighway has developed so far that cyberspace is the norm for all business and personal dealings. Information has become so important that to shield the most delicate files from hackers, the data is transported in the heads of Mnemonic couriers. Johnny (Keanu Reeves) is the best, but this time the raw data he carries is so sensitive that he is being pursued by many interested parties and he must deliver it before he dies from the burden or is killed.