"The owner of a suburban boarding school is found murdered. The culprit will be unmasked thanks to the ingenuity and courage of the good Janine and a student, named Nadine."
Dora Doll
as Jeanine - la servante
Françoise Vatel
as Nadine
Guy Jacquet
as Gérard Lambert
Joël Séria
as Olivier Berton
Michel Dumur
as Louis dit P'tit Lou
Louis Seigner
as Monsieur Maréchal - le directeur de l'institution
Georges Chamarat
as Monsieur Pommelle
Marguerite Pierry
as Mademoiselle Guérande
Charles Bayard
as
Richard Bohringer
Pierre Clémenti
Jacques Degor
Mag-Avril
as Un professeur
Maryse Martin
as La directrice
Claude Mercutio
Marcel Pérès
as Un inspecteur
Jean Roucher
André Valardy
Lucien Barjon
as (uncredited)
Jean-Claude Forestier
Jean Gourguet
Director
Producer
Jeanne-Marie Favier
Editor
Screenplay
Michelle Gourguet
José Cana
Original Music Composer
Scarciafico Hugo
Director of Photography