A ship, La Circé, has sunk and it might possibly be criminal . The vessel belongs to Storata ,who asks the insurance company for a hundred million Francs .Callaghan is working for them and he investigates on dry land and on the sea. The brilliant detective discovers that Storata has scuttled his ship himself to swindle insurance.
| Directing | Willy Rozier | Director |
| Writing | Peter Cheyney | Novel |
| Writing | Willy Rozier | Writer |
| Camera | Michel Rocca | Director of Photography |
| Editing | Madeleine Crétolle | Editor |