In affairs of the heart, the race is not necessarily won by the swift or the fair.

Imogen, the beautiful and much younger wife of distinguished barrister Evelyn Gresham, is facing the greatest challenge of her married life. Their neighbour Blanche Silcox, competent, middle-aged and ungainly—the very opposite of Imogen—seems to be vying for Evelyn's attention. And to Imogen's increasing disbelief, she may be succeeding.