Plot: The Great Hall at Avery Hill College in London is the setting as four contestants challenge for a place in the semi-finals of Mastermind 1984. Joseph Angel (physician) Austrian Habsburgs, 1740-1792 Michael Davison (publisher's editor) Coastline of Great Britain Richard Joby (lecturer) Great Eastern Railway, 1862-1922 Margot Stewart (company director) Life of Duke of Windsor