Johnny Mnemonic is based on William Gibson's short story and a subsequent movie of the same name. The game's plot bears more similarities to the movie than to the original story. Johnny is a courier in a futuristic society, delivering data implanted in his brain. However, the latest delivery is so big that it can kill him if he doesn't download the data. Unfortunately, the only person who knew the password is dead, and members of the Yakuza are hunting for the data and for its living container.