Kay Brent is returning to her Kensington flat one spring afternoon burdened with many parcels. She is rescued by a stranger in a taxi, John Browne. She's divorced from her husband he's married and a director in a publishing firm. They discover similar tastes and an affair develops. As the seasons progress, the progress of the affair is lightly but relentlessly followed to its wry conclusion. It's a conclusion although undoubtedly inevitable which is finally sealed by the appearance of a mysterious visitor. This man is much resented by John who has gradually changed from a gay cavalier to a jealous, suspicious and pompous man.