Wanneer een vrouw wordt beschuldigd van moord, brengt het onderzoek langzaam talloze politieke verbanden aan het licht. Laubret, de door de rechtbank aangestelde advocaat, doet er alles aan om de waarheid bloot te leggen.
Nee, helaas is Défense de savoir nog niet beschikbaar op Netflix in Nederland.
| Directing | Gianfranco Clerici | Second Assistant Director |
| Camera | Claude Schwartz | Still Photographer |
| Sound | Bruno Nicolai | Original Music Composer |
| Sound | Harald Maury | Sound |
| Camera | William Lubtchansky | Director of Photography |
| Sound | Michel Desrois | Sound Assistant |
| Production | Ralph Baum | Production Manager |
| Directing | Jacques Racine | Second Assistant Director |
| Art | Dominique Chapuis | Assistant Production Design |
| Editing | Cristiana Tullio-Altan | Assistant Editor |
| Editing | Nicole Lubtchansky | Editor |
| Production | Raymond Danon | Producer |
| Editing | Carole Marquand | Assistant Editor |
| Directing | Élisabeth Rappeneau | Script Supervisor |
| Art | Anastasio Papatakis | Production Design |
| Costume & Make-Up | Olympe Watelle | Costume Design |
| Costume & Make-Up | Monique Archambault | Makeup Artist |
| Directing | Jean-Jacques Beineix | Second Assistant Director |
| Directing | Jean-Patrick Lebel | First Assistant Director |
| Directing | Nadine Trintignant | Director |
| Writing | Nadine Trintignant | Writer |
| Writing | Alain Corneau | Writer |
