A leftist professor wants the truth about two men killed during a hunting party; but the mafia, the Church and corrupt politicians don't want him to learn it.
Gian Maria Volonté
as Professore Paolo Laurana
Irene Papas
as Luisa Roscio
Gabriele Ferzetti
as Avvocato Rosello
Laura Nucci
as Roscio's Mutter
Mario Scaccia
as curato di Sant'Amo
Luigi Pistilli
as Arturo Manno
Leopoldo Trieste
as deputato comunista
Salvo Randone
as Professore Roscio
Giovanni Pallavicino
as Raganà
Tanina Zappalà
as