住在罗马的摄影师凯蒂目睹了一名年轻女子被一名戴着黑手套、手持剃刀的凶手杀害。凯蒂和她的未婚夫阿尔贝托去报警，却得知另外两名目击者也惨遭杀害。
Robert Hoffmann
Alberto Morosini
Nieves Navarro
Kitty
George Martin
Inspector Merughi
Anuska Borova
Lidia Arrighi & Silvia Arrighi
Simón Andreu
Marco
Anna Liberati
Secretary at dance academy
Rosita Torosh
Nina Ferretti
Cristina Tamborra
Magda Hopkins
Nerina Montagnani
Marta
Orlando Baralla
Generale
Gianni Pulone
Fireman
Sal Borgese
Asdrubale Magno
Rodolfo Lolli
Lolli - the Inspector's assistant
Serafino Profumo
(Credit Only)
