- Country: West Germany
- Genres: Crime, Thriller
- Release: 1966-01-14
- Director: Jürgen Roland
- Writers: Thomas Keck , Max Pierre Schaeffer
- Language: German
- Stars: Günther Ungeheuer , Walter Rilla , Monika Peitsch , Hanns Lothar , Hellmut Lange , Ida Krottendorf , Paul Edwin Roth , Ellen Schwiers , Silvana Sansoni , Jürgen Draeger
- Runtime: 107 min
- Awards: 1 nomination
- AKA: Cuatro llaves (Argentina) , Atraco sangriento (Spain) , 4. avain (Finland) , As Quatro Chaves (Portugal, Portuguese Republic) , The Four Keys (United Kingdom) , Le quattro chiavi (Italy) , 4 Schlüssel , 4 Schlüssel
- Plot: This is one of the good german b/w thrillers from the 60'ies. It has a nice plot and features a lot of german movie and tv stars of this time like Walter Rilla, Joseph Offenbach, Günther Ungeheuer, Monika Peitsch and many others. "Vier Schlüssel" reminds of the sixties tv series "Stahlnetz" which was made by the same director Jürgen Roland. If you liked "Stahlnetz" and other german b/w thrillers chances are good that you will also enjoy this one.
- IMDB:tt0059876
4 Schlüssel Cast · · · ALL
Jürgen Roland
Director
Günther Ungeheuer
Alexander Ford
Horst Michael Neutze
Charlie
Jürgen Draeger
Jensen
Walter Rilla
Eduard Rose
Monika Peitsch
Silvia Rose
Hellmut Lange
Rolf Thilo
Paul Edwin Roth
Konrad von Brenken
Ellen Schwiers
Irene Quinn
Ida Krottendorf
Margarete Wohlers
Joseph Offenbach
Vater Wohlers
Hanns Lothar
Richard Hiss
Christa Siems
Haushälterin
Heinz Engelmann
Polizei-Offizier