|Ingrid Bergman||Katherine Joyce|
|George Sanders||Alexander ``Alex'' Joyce|
|Leslie Daniels||Tony Burton|
|Anna Proclemer||La prostituta|
|Paul Muller||Paul Dupont|
|Natalia Ray||Natalie Burton|
Sharing a passionless existence together, Alexander and Katherine Joyce, a married English couple, travel to Naples after inheriting a villa. On the verge of divorce, with neither one's disposition warming to the other, they decide to spend the rest of the trip separately. Katherine visits museums and historical sites, whereas Alexander goes to Capri to unwind with drinks. However, during the course of their vacation, the Joyces both undergo changes.