When Norman Graysmith is invited into the home of an aspiring serial killer, Aidan Mendle, he believes he has the subject for the documentary that will make his career.

Over the last ten years, technology has transformed almost every aspect of our lives before we've had time to stop and question it. In every home; on every desk; in every palm - a plasma screen; a monitor; a smartphone - a black mirror of our 21st Century existence.