Two nuns come to Rome to protest to an airline about its jet planes which have been flying over their convent school, disrupting teaching of the little orphans who study there and damaging the ancient fresco of their patron saint through sound vibrations.
Catherine Spaak
as Sister Celeste
Sylva Koscina
as Elena
Amedeo Nazzari
as Livio Bertana
Didi Perego
as Mother Rachele
Umberto D'Orsi
as Giovanni Menegatti detto Spugna
Sandro Bruni
as Damiano, l'orfano
Annie Gorassini
as segretaria di Bertana
Lando Buzzanca
as Amilcare Franzetti
Alberto Bonucci
as Batistucchi
Antonio Pierfederici
as il presidente
Consalvo Dell'Arti
as il dottore
Ugo D'Alessio
as il regista