When Monsieur Crauqual, the supervisor, is found hanging, all wonder why this rather rich person decided to kill himself. And when a pupil is found hanging too, François and his friends decide to investigate. They are certain there is a killer within the walls of Collège François 1er and determined to prevent him from going on running wild.
as Dominique Lekain
as Deberny
as Mariette
as Belleu
as Commissioner
as Morgain
as Fiellat
as Professor
as Madame Lieusaint
as Luxeuil
as Monsieur Crauqual
as Godmother
as Monitor
as Professor
as Doctor
as Lieusaint
as Samson
as Student
as Student
as Maledieu (uncredited)
as Student (uncredited)
as (uncredited)
as Regular in the circle (uncredited)
as Student (uncredited)
as Student (uncredited)
as Student (uncredited)
