Stanislas Oscar Seminario, aka SOS, is a young explorer, just back from Africa, visiting old friends: the Pescara's. But the father keeps receiving anonymous letters. And soon a mysterious murder is committed. SOS begins to investigate...
3.0 / 5
Paul Meurisse
Stanilas Octave Seminario aka 'SOS', détective
Micheline Francey
Muriel Pescara, the daughter
Gilbert Gil
Charles Pescara, the son
Pierre Renoir
Doctor Gérard Pescara, the father
Jean Tissier
Guillaume
Pierre-Louis
Paul Wantz
Junie Astor
Hélène Tassin, nurse
Jean Debucourt
Doctor Vermeulen
Jean Brochard
Investigating judge
Mady Berry
Brigitte Tassin
Pierre Palau
Doorman
Arthur Devère
Lock keeper
Marcel Pérès
Road mender
Sinoël
Gardener
Georges Bever
Baptiste, clerk
Madeleine Suffel
Hotel boss
Michel Seldow
Illusionist Pablo
Marc Arian
(uncredited)
Léon Arvel
Alfred Baillou
Man (uncredited)
Rivers Cadet
Marcel Charvey
Raymond Destac
Pierre Duncan
Cécile Eddy
Henry Gerrar
Concierge (uncredited)
Claire Gérard
Colette Mareuil
Pierre Moncorbier
Geneviève Morel
Pescara cook (uncredited)
Henri Niel
Julienne Paroli
Gossip (uncredited)
Marcelle Rexiane
Director (uncredited)
Maurice Salabert
Germaine Stainval
Jean-Marc Tennberg
Agent on duty (uncredited)
Georgette Tissier
Telephone operator (uncredited)
Jean Devaivre
Director
Jean-Paul Le Chanois
Screenplay
René Gaveau
Director of Photography
Joseph Kosma
Original Music Composer
