It began in a Woman's Club in London on a February afternoon—an uncomfortable club, and a miserable afternoon—when Mrs. Wilkins, who had come down from Hampstead to shop and had lunched at her club, took up The Times from the table in the smoking-room, and running her listless eye down the Agony Column saw this: To Those Who Appreciate Wistaria and Sunshine. Small mediaeval Italian Castle on the shores of the Mediterranean to be Let furnished for the month of April. Necessary servants remain. Z, Box 1000, The Times. That was its conception; yet, as in the case of many another, the conceiver was unaware of it at the moment. So entirely unaware was Mrs. Wilkins that her April for that year had then and there been settled for her that she dropped the newspaper with a gesture that was both irritated and resigned, and went over to the window and stared drearily out at the dripping street...

1920年代のロンドンで、味気ない日常生活に押し流されている主婦ロッティは、ふと目にした新聞広告に心を奪われる。それは“地中海に面したイタリアの古城を4月いっぱい貸し出す”というもの。そこで、いつも教会で見かけるアーバスノット夫人に声をかけ、さらに家賃を浮かせるため二人の女性を同行者に加えて、ついにイタリアでの生活をスタート。やがて、花と光あふれる城は彼女たちの心を、それまでの問題から徐々に解き放っていく...。夢のようなバカンスを通して、新しい自分に生まれ変わる女性たちの姿を描く映画原作。