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Louis Velle as Inspecteur Grey |
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Luce Feyrer as Monique |
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Georges Vitray as Brown |
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Marcel Carpentier as Poussin |
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Françoise Hornez as Hélène |
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Albert Médina as Le commissaire |
| Writing | Jacques Chabannes | Adaptation |
| Directing | Jean Kerchbron | Director |
| Art | Paul Pélisson | Decorator |
| Writing | Max Viterbo | Author |
| Camera | Nicolas Hayer | Director of Photography |
| Writing | Alfred Gragnon | Author |
| Production | Jacques Chabannes | Producer |
