In a repressive boarding school with rigid rules of behavior, four boys decide to rebel against the director on a celebration day.

Jean Dasté
as Supervisor Huguet

Robert le Flon
as Supervisor Pète-Sec

Du Verron
as General Supervisor Bec-de-Gaz

Delphin
as Principal

Léon Larive
as Teacher

Madame Émile
as Mother Haricot

Louis de Gonzague
as Prefect

Raphaël Diligent
as Firefighter

Louis Lefebvre
as Caussat

Gilbert Pruchon
as Colin