Four very diverse women, all seeking revitalization and escape from the dreary February rains of 1920s London, rent the small medieval castle of San Salvatore, nestled high above the bay of Portofino, Italy. Arriving at San Salvatore, they find it awash with the scent of flowers, its olive groves terracing down to the sun-warmed sea.

Mrs. Wilkins and Mrs. Arbuthnot are glad to leave their insipid duties and unresponsive husbands behind; the elderly Mrs. Fisher wishes only to sit in the sun and replay her youthful memories; and the bewitchingly beautiful Lady Caroline Dester desires to have seclusion from all adoring suitors. A month of blissful privacy at San Salvatore promises to be the remedy each of them is looking for. Amid the canopies of fragrant wisteria, in the sweet sunshine and melodious silence, four lives are transformed and resuscitated by the magic of San Salvatore.