Louis Theroux sets out to understand how a man at the centre of British entertainment and charitable fundraising for decades was able to get away with a long litany of crimes.

In light of the unmasking of Jimmy Savile as a predatory sex offender, and 15 years on from the BBC documentary When Louis Met Jimmy, Louis Theroux sets out to understand how a man who was at the centre of British entertainment and charitable fundraising for decades was able to get away with a long litany of crimes.

In this reflective 75-minute film, Louis talks to some of Savile's victims and to people who worked closely with him, and re-examines moments from the original film as well as footage that has never aired before on television.