Berlin, shortly after World War II. Five parentless siblings, led by the oldest sister Inge Kuckert, search for a place to stay and a basis of existence in the destroyed city. A bombed villa in the Grunewald seems to be the right "cuckoo's nest", but an alleged authorised disposal tries to drive the siblings out of the building. Fortunately, the friendly neighbor can help.

The mechanic Behnke wants to join the Nazi party to secure a good living. However, after his Jewish neighbors have been taken away, he changes his views. Trying to remain "a non-political man," he withdraws from reality and becomes a Nazis laborer.