A dying priest is commissioned to investigate the deeds of Giacomo Nerone, a dead wartime partisan, and find out if he truly is worthy of being canonized.
John Mills
as Monsignor Blaise Meredith
Stéphane Audran
as Contess Anne Di Sanctis
Jason Miller
as Dr. Aldo Meyer
Paola Pitagora
as Nina Sanduzzi
Leigh Lawson
as Giacomo Nerone / James Black
Timothy West
as Father Anselmo
Patrick Mower
as 'Il Lupo'
Raf Vallone
as Bishop Aurelio
Romolo Valli
as Cardinal Marotta
Jack Hedley
as Doctor
Daniel Massey
as Nicholas Black