Commissaire Perrache, the chief of the D.S.T., the French domestic intelligence service, tries to neutralize a group of terrorists named the Partisans de la Métropole. He sends one of his best agents, inspector Louis Vignon, incidentally the husband of his charming secretary Lucette, on the trail of an illegal transmitter. But Vignon gets kidnapped by the gang and held captive on a boat off the shores of Monaco...
Commissioner Perrache of the D.S.T.
Lucette Vignon
Inspector Paul Duchamp
Kurt Topfer
Saab Astérich
Inspector Louis Vignon
Koskah
Lynda
Mrs. Astérich
Linda
Naval officer
Technician from South Tunisian
Technician from South Tunisian
Mrs. Perrache
Archivist
Journalist
Inspector Ben Hamman
Inspector Rentier
Spectator at the cinema (uncredited)
Commentator (uncredited)
Beefcake (uncredited)
Radio technician (uncredited)
Monegasque policeman (uncredited)
Lady in the cinema (uncredited)
Jupiter, D.S.T. agent (uncredited)
