In the future, an alien race called the Elaki have arrived on Earth. They bring with them advanced technology that allows them to develop solutions to some of mankind's problems such as mental illness. There are some problems as well. Elaki are advising in various fields from politics to business to agriculture and some humans feel they are crowding people out of these areas. Meanwhile, in Saigo City, a serial killer dubbed 'Machete Man' by the press is on the rampage. The grisly killings have SCPD detectives David Silver and Mel Burnett looking for any clue they can find. When a elderly woman manages to escape the Machete Man's clutches Silver and Burnett make their way to the crime scene, only to find they've been assigned an Elaki adviser known as String. Thus begins an investiagtion that leads into evidence of a criminal conspiracy involving Elaki and humans. Hightower has assembled a thrilling suspense story featuring realistic human cops and truly alien aliens.