Peter Clarke, a former member of British Intelligence–inactive for years but still subject to the agency, aware as they are of his role in a homicide–is called on to deliver a package to his native Australia: the package contains an audio tape of recordings that will erase a listener's memory. Clarke's handler also hopes that the package will draw an enemy agent out because, by listening to the tape, he will neutralise himself. But this is only one of the parties who is interested in the potential of these recordings.
