Lilia Herriton, a widow of several years who has been living with her husband's family since his death, cheerfully leaves Sawston, England, with her friend Caroline Abbott for an extended visit in Italy. The Herriton family encouraged such a visit because of their concern over Lilia's growing relationship with a man they consider unsuitable for her and also because they welcome a chance to train her daughter during the mother's absence. The trip, which is Philip's idea, is quickly agreed to by everyone concerned. Fortunately, Caroline, a woman ten years younger but much more levelheaded than Lilia, is also planning such a trip and needs a companion.