Don Giorgio, a handsome young priest and teacher in a convent, is involved with two lovers: Orchidea and Giulia. When he repents and vows to return to the Church, he is savagely beaten to death. Not long after, Giulia has her throat slashed. Inspector Boito falls in love with and prepared to marry Orchidea, who is also the main suspect. The key to solving the case seems to lie with an inquisitive boy called Ferruccio, who is kept locked up and drugged. He witnessed one of the murders, but will anyone believe his story?
Renzo Montagnani
as Inspector Boito
Bedy Moratti
as Orchidea Durantini
Eva Czemerys
as Giulia Pisani
Salvatore Puntillo
as Moriconi
Claudia Gravy
as Sister Tarquinia
Alcira Harris
as
Arturo Trina
as Ferruccio
Adolfo Belletti
as Anselmo Barsetti - The Sacristan
Arnaldo Bellofiore
as
Francesco D'Adda
as Pisani - Giulia's Husband
Filippo Pompa Marcelli
as (as Filippo Marcelli)
Gina Mascetti
as Mother Superior
