It chronicles the events that led to the drafting of the so-called "Lavender List", a satirical name given to Harold Wilson's controversial 1976 resignation honours.
The docudrama was written by journalist Francis Wheen, deputy editor of the satirical magazine Private Eye.
Wheen said that it was based on the political diaries of two members of Wilson's cabinet: press secretary Joe Haines and director of policy Bernard Donoughue.
The list itself caused controversy as some of the recipients were wealthy businessmen whose principles were considered antithetical to those held by the Labour Party.
[4] The BBC paid Williams £75,000 in damages for claiming that she conducted an adulterous affair with Wilson, and that she exercised undue influence over the compilation of the list.