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.
| Directing | Compton Bennett | Director |
| Writing | John Dickson Carr | Novel |
| Writing | Compton Bennett | Screenplay |
| Camera | Leo Rogers | Camera Operator |
| Art | John Stoll | Art Direction |
| Camera | Geoff Glover | Clapper Loader |
| Costume & Make-Up | Evelyn Gibbs | Wardrobe Supervisor |
| Camera | Lionel Banes | Director of Photography |
| Directing | Douglas Hermes | Assistant Director |
| Costume & Make-Up | Jim Hydes | Makeup Artist |
| Production | 'Freddie' Pearson | Production Manager |
| Directing | June Randall | Continuity |
| Costume & Make-Up | Nina Broe | Hairstylist |
| Sound | Stanley Black | Original Music Composer |
| Sound | Stanley Black | Conductor |
| Production | William J. Gell | Producer |
| Editing | Bill Lewthwaite | Editor |
| Sound | Bernard Brown | Sound Recordist |
