4 Schlüssel (1966)
Κυκλοφόρησε: Jan 14, 1966
Χρόνος εκτέλεσης: 1:47:31 λεπτά
Είδος: Θρίλερ, Αστυνομική
Αστέρια: Günther Ungeheuer, Horst Michael Neutze, Jürgen Draeger, Walter Rilla, Monika Peitsch, Hellmut Lange
Crew: Jürgen Roland (Director), Susanne Paschen (Editor), Max Pierre Schaeffer (Screenplay), Max Pierre Schaeffer (Novel), Thomas Keck (Screenplay), Konrad Elfers (Original Music Composer)