Slim Callaghan investigates the theft of the famous Upper Sangha diamonds. Disguised as a Salvation Army auxiliary, he boards a luxury yacht where a transvestite party is being held. During an illusionist's trick, Callaghan manages to steal the precious diamonds, but the thief escapes.
| Directing | Willy Rozier | Director |
| Writing | Willy Rozier | Writer |
| Editing | Madeleine Crétolle | Editor |
| Camera | Michel Rocca | Director of Photography |