Set in the early 20th century, the story follows young and impressionable Lucy Honeychurch, who travels to Florence, Italy, with her chaperone, the strict and proper Charlotte Bartlett. At their guest house, they meet the free-spirited and unconventional George Emerson and his father. George immediately takes an interest in Lucy, and despite their differences in social class and personality, a spark develops between them. An unexpected event during an excursion in the Italian countryside deepens this connection, leaving Lucy both attracted and confused by George's passionate outlook on life.

Returning to England, Lucy becomes engaged to the affluent but dull Cecil Vyse. Despite his wealth and status offering a secure future, Lucy remains haunted by her memories of George and the emotional awakening she experienced in Italy. When the Emersons move into a nearby cottage by coincidence orchestrated through Cecil’s arrogance, it reignites Lucy's internal conflict between societal expectations and her true desires. As pressures mount from family and society, Lucy is forced to confront her feelings and make a choice that will determine her future happiness.