"Inspector Angelo De Paul is assigned to investigate a horrifying series of murders that have gripped Venice and left the authorities baffled."
Leonora Fani
as Flavia
Jeff Blynn
as Inspector Angelo De Pol
Gianni Dei
as Fabio, Flavia's husband
Michele Renzullo
as Andrea Caron
Eolo Capritti
as Maestrin
Vassili Karis
as Bruno Nielsen (as Vassili Karamesinis)
Giancarlo Del Duca
as Alberto
Mariangela Giordano
as Marzia
Giuseppe Curia
as Man in Cinema (uncredited)
Luciano Foti
as Surveillance Cop (uncredited)
Alba Maiolini
as Cleaning Lady (uncredited)
Maria Mancini
as Prostitute (uncredited)
Maurizio Streccioni
as Marco (uncredited)
Maria Tedeschi
as Flora (uncredited)
Mirella Venturini
Claudio Zucchet
as Night Guard (uncredited)
Giovanni Morosi
as Old Witness (uncredited)
Mario Landi
Director
Aldo Serio
Story
Screenplay
Gabriele Crisanti
Producer
Berto Pisano
Original Music Composer
Franco Villa
Director of Photography
Mario Salvatori
Editor
Nunzio De Angelis
Production Designer
Itala Giardina
Costume Designer
Marcello Spingi
Unit Production Manager
Roberto Silvestrini
Assistant Director
Umberto Picistrelli
Sound
Silvio Spingi
Boom Operator
Giuseppe Botteghi
Still Photographer
Gianni Marras
Assistant Camera
Giacomo Testa
Camera Operator
Mirella Cavalloro
Script Supervisor
Adriana Lamacchia
Gianfranco Fornari
Production Secretary
Mauro Gavazzi
Makeup Artist