For ten years Louis Theroux has been making programmes about off-beat characters on the fringes of US society. Now he revisits America & the people who have most fascinated him to try to discover what motivates them why they believe the things they believe & to find out what has happened to them since he last saw them. Along the way Louis thinks about what drives him to spend so much time among weird people & considers whether hes learned anything about himself in the course of ten years working with them. Has he manipulated the people hes interviewed or have they manipulated him? From his Las Vegas base Louis revisits the assorted dreamers & outlaws who have been his TV feeding ground. Attempting to understand a little about himself & the workings of his own mind Louis considers questions such as: What is the difference between pathology & normal weirdness? Is there something particularly weird about Americans? What does it mean to be weird or to be yourself? & do we choose our beliefs or do our beliefs choose us?