Truly Dreadful Film

Excellent characters with emotional depth. My wife, daughter and granddaughter all enjoyed it...and me, too! Very good movie! You won't be disappointed.

It is interesting even when nothing much happens, which is for most of its 3-hour running time. Read full review

One of the most extraordinary films you will see this year. Take that as you want.

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.