After the resignation of Margaret Thatcher, Henry Collingridge has become the new Prime Minister of the United Kingdom: he is a somewhat colorless figure who wants to follow a slightly progressive course. He wins the election, but the Conservative Party has suffered heavy losses. His chief whip, Francis Urquhart, has a proposal for a cabinet reshuffle that would also include him in a ministerial post, as promised by the prime minister several months ago. Collingridge dismisses his proposal and leaves everything as it is because, after this poor election result, he wants to radiate stability. Urquhart decides to take revenge.