In a French coastal town, Det. Dermot Kinross is inspecting the murder of antiques dealer Maurice Lawes, and the evidence points to Lawes's son, Toby -- and especially to Toby's bride-to-be, Eve Atwood. Eve's ex-husband, Ned, had his eyes set on something Lawes possessed.
| Actor | Role |
|---|---|
 Phyllis KirkEve Atwood | Eve Atwood |
 Dan O'HerlihyDermot Kinross | Dermot Kinross |
 Wilfrid Hyde-WhiteSir Maurice Lawes | Sir Maurice Lawes |
 Petula ClarkJanice Lawes | Janice Lawes |
 Jack WatlingToby Lawes | Toby Lawes |
 William FranklynNed Atwood | Ned Atwood |
 Margaret WithersLady Helena Lawes | Lady Helena Lawes |
 Guido LorrainePrefect Aristide Goron | Prefect Aristide Goron |
 Jacques CeyBusson | Busson |
 Andre CharisseGaston | Gaston |
| RRobert RaikesBill Morris | Bill Morris |
| TTita DaneMarie | Marie |
 BalbinaPrue | Prue |
| IIrene MooreDiana | Diana |
| CConcepta FennellPeggy | Peggy |
| CCampbell GrayGendarme | Gendarme |