After he mends a marital rift between a vacationing young couple, the bored, fragile wife falls hopelessly in love with the husband's ex-colleague who is married to a long-suffering and emotionally and physically scarred woman. The couple soon runs off to Greece together to pursue the romance.
| Actor | Role |
|---|---|
 Peter FinchMurray Logan | Murray Logan |
 Jane FondaChristine Bonner | Christine Bonner |
 Angela LansburySybil Logan | Sybil Logan |
 Arthur HillSam Bonner | Sam Bonner |
 Constance CummingsMrs. Nina Gellert | Mrs. Nina Gellert |
 Alexander KnoxFrederick Bonner | Frederick Bonner |
 Nigel DavenportLeonard Groves | Leonard Groves |
 John Le MesurierDr. Arraman | Dr. Arraman |
 Alec McCowenDickie Bayliss | Dickie Bayliss |
| AAndreas MarkosAndreas | Andreas |
 Thomas BaptisteMurray Logan's chauffeur (uncredited) | Murray Logan's chauffeur (uncredited) |
 Madeleine SherwoodParty Hostess (uncredited) | Party Hostess (uncredited) |
 Valerie TaylorLily Kendrick | Lily Kendrick |