Money and Influence: the shadowy world of political donations. As we head into the third week of the election campaign, Four Corners investigates just how transparent the political parties really are when it comes to revealing who their donors are and what is expected in return. It's a world that operates far from public view with a patchwork of donation laws around the country. A variety of methods are used to keep the identities of donors secret, leaving voters hard pressed to find out just who is funding whom. Reporter Quentin McDermott, talks to influential figures operating in this world, who speak candidly about their experiences. And in an exclusive interview with Four Corners, the regulator withholding more than $4 million dollars of funding destined for the Liberal party breaks his silence.

Four Corners is Australia's premier television current affairs program. It has been part of the Australian story since August 1961, exposing scandals, triggering inquiries, firing debate, confronting taboos and interpreting fads, trends and sub-cultures. Its consistently high standards of journalism and film-making have earned international recognition and an array of Walkleys, Logies and other national awards.