Having developed a revolutionary device that puts water in the mouth of all secret services in the world, professor Forrester is about to go on a conference in San Francisco under the protection of Tom Lepski, an insurer.
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| Directing | Georges Lautner | Director |
| Writing | Gilles Lambert | Scenario Writer |
| Writing | Sergio Gobbi | Scenario Writer |
| Writing | James Hadley Chase | Novel |
| Sound | Stelvio Cipriani | Music |
| Production | Sergio Gobbi | Producer |
| Editing | Georges Klotz | Editor |
| Art | Constantin Mejinsky | Art Direction |
| Costume & Make-Up | Charly Koubesserian | Makeup Artist |
| Sound | Frédéric Hamelin | Sound Engineer |
| Sound | Nadine Muse | Sound Editor |
| Camera | Yves Rodallec | Director of Photography |
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