Charles Van Horn, son of rich and powerful Théo Van Horn, calls upon his former teacher Paul Régis to help him solve the mystery of his recurring bouts of amnesia.
Unfortunately the movie Ten Days' Wonder is not yet available on HBO Max.
| Production | André Génovès | Producer |
| Directing | Claude Chabrol | Director |
| Writing | Manfred Lee | Writer |
| Writing | Paul Gégauff | Writer |
| Writing | Frederic Dannay | Writer |
| Writing | Ellery Queen | Original Story |
| Editing | Jacques Gaillard | Editor |
| Camera | Jean Rabier | Director of Photography |
| Writing | Paul Gardner | Screenplay |
| Writing | Eugene Archer | Screenplay |
| Sound | Pierre Jansen | Music |
| Costume & Make-Up | Jacky Reynal | Makeup Artist |
| Costume & Make-Up | Jacky Bouban | Makeup Artist |
| Art | Guy Maugin | Set Decoration |
| Costume & Make-Up | Karl Lagerfeld | Costume Design |
| Costume & Make-Up | Alaine Scemama | Hairstylist |
| Art | Guy Littaye | Production Design |
| Costume & Make-Up | François-Xavier Leclerc | Makeup Artist |
