

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...
Sign in to add to your listWhat critics are saying
Verdicts use the same scale as your list: highly recommended through avoid — plus optional scores and blurbs.
Nobody on Critic, Sir! has logged a verdict for this title yet. The silence is either respectful or suspicious.
Sign in and use Add to My List below to share your own verdict.
Cast

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
Watching Lists
Sign in to create and edit public lists.
Loading lists…
Purchase & Discovery
Find this title on Amazon
Digital
Prime Video & digitalAmazon mixes rent, buy, and Prime in one place — one search covers the usual options.
Physical edition
4K Blu-ray & physical releasesSearch on AmazonOfficial merchandise
Official-style merch searchApparel, collectibles, and moreAs an Amazon Associate, Critic, Sir! earns from qualifying purchases. Full disclosure