Following the mysterious decapitation of an insurance investigator, Police Inspector Peretti is put onto the case, but all the clues lead to an unsolved case of kidnapping and murder.
George Hilton
as Inspector Luca Peretti
Salvo Randone
as Chief Marò
William Berger
as Giorgio Canavese
Marilù Tolo
as Dr. Anna Borgese
Manuel Zarzo
as Brigadier Bozzi (as Manolo Zarzo)
Patty Shepard
as Paola Rossi, the teacher
Piero Lulli
as Alessandro Moroni
Helga Liné
as Mrs. Paradisi
Tullio Valli
as Oliviero Moroni
Dante Maggio
as Mattia Guardapelle
Dana Ghia
as Eleonora Moroni
Alfredo Mayo
as Beniamino
