The mysterious death of a well-known criminal sparks an investigation into national security.
Frank Villard
Captain Thierry
Marc Cassot
Inspector Lombard
Geneviève Kervine
Martine Duverger
Martine Sarcey
Hélène
Jean Tissier
Edgar Clément
Paul Amiot
Morel
Gérard Buhr
Battini
Christian Barbier
Professor Verdier
Jacques Eyser
René Clermont
