To Porterhouse College, Cambridge, famous for rowing, low academic standards. and a proud cuisine, comes a new Master, an ex-grammar-school boy, demanding Firsts, women students, a self-service canteen, and a slot-machine for contraceptives. There is considerable opposition to this challenge to the established order, in the form of Skullion, the intransigent porter at Porterhouse, who is determined that the hallowed traditions of the College will never change.