"Police try to track down a hooded serial killer who murders his victims with a combination of acid and poison gas."
Joachim Fuchsberger
as Inspektor Higgins
Uschi Glas
as Ann Portland
Grit Boettcher
as Betty Falks
Siegfried Schürenberg
as Sir John
Konrad Georg
as Keyston
Harry Riebauer
as Mark Denver
Tilly Lauenstein
as Harriet Foster
Ilse Pagé
as Secretary
Siegfried Rauch
as Frank Keeney
Claus Holm
as Glenn Powers
Günter Meisner
as Greaves
Hans Epskamp
as Bannister
Heinz Spitzner
as Harrison
Jan Hendriks
as Brent
Rudolf Schündler
as Sergeant Hanfield
Narziß Sokatscheff
as Cress Bartling
Tilo von Berlepsch
as Dr. Shinewood
Kurt Waitzmann
as Carrington
Suzanne Roquette
as Mary Houston
Susanne Juhnke
as June Bell
Inge Sievers
as Mildred Miller
Ewa Strömberg
as Pam Walsbury
Bruno W. Pantel
as Busschaffner
Kurt Buecheler
as Winston Robson
Wilhelm Vorwerg
as Dr. Cabble
Herbert Reinecker
Screenplay
Alfred Vohrer
Director
Harald G. Petersson
Karl Löb
Director of Photography
Horst Wendlandt
Producer
Edgar Wallace
Novel
Jutta Hering
Editor
Martin Böttcher
Original Music Composer
Eva Ebner
Assistant Director
Joachim Gitt
Assistant Camera
Lothar Winkler
Still Photographer
Gerd-Victor Krau
Rudolf Sandtner
Camera Operator
Ernst Zahrt
Irms Pauli
Costume Design
Willi Nixdorf
Makeup Artist
Charlotte Kersten
Production Design
Walter Kutz
Evelyn Siewert
Assistant Editor
Gerhard Müller
Sound
Fritz Klotsch
Line Producer
Wolfgang Kühnlenz
Production Manager
Harry Wilbert
Unit Manager
Herbert Kerz
Gerhard Selchow