"Karin studies music in Rome and falls in love with Bruno. She learns that he is married and therefore returns to Sweden. She meets David. They marry and have a daughter. David is sent to Rome. Karin meets Bruno again."
Bibi Andersson
as Karin Ullman
Robert Stack
as David Frasier
James Farentino
as Bruno Cardini
Annie Girardot
as Liliana
Didi Perego
as Bruno's Girl Friend
Mario Nascimbene
as Prof Ferrara
Francesco Mulè
as Manzetti (as Francesco Mulé)
Frank Sundström
as Mr. Ullman
Toivo Pawlo
as Rushenov
Beppe Wolgers
as Fahlen
Birgitta Valberg
as Mrs. Ullman
Cathy Riney
as Cathy
Erika Rosell
as Sissi
Ted Gärdestad
as Swedish Boy Playing Accordion (uncredited)
Kenneth Gärdestad
as Swedish Guy Playing Guitar (uncredited)
Sergio Mioni
Technical Advisor
Fred Wallach
Production Manager
Roberto Malenotti
Assistant Director
Milton Feldman
Production Supervisor
Cesare Allione
Camera Operator
Luciano Welisch
Sound
Bud Westmore
Makeup Supervisor
Marion Mertes
Script Supervisor
Luciano Piperno
Unit Production Manager
Waldon O. Watson
Hunt Downs
Unit Publicist
Leonardo Bercovici
Producer
Milton Shifman
Editor
Franco Fumagalli
Set Decoration
Director
Cesare Gambarelli
Makeup Artist
Writer
Aurelio Crugnola
Art Direction
Alexander Golitzen
John McCarthy Jr.
Giuseppe Banchelli
Larry Germain
Music Supervisor
Edith Head
Costume Design
John Williams
Original Music Composer
Stanley Wilson
Piero Portalupi
Director of Photography
Italia Scandariato
Wardrobe Designer
Hairstylist
Renzo Lucidi
Consulting Editor
Vasco Reggiani
Dede Allen
Production Consultant