When a prostitute is murdered in a cheap Berlin boarding house, an investigating judge suspects that the killer is her boyfriend, unaware that his own son and daughter are also mixed up in the case.
Albert Bassermann
as Dr. Konrad Bienert, Landgerichtsrat
Gustav Fröhlich
as Fritz Bernt, Student
Hans Brausewetter
as Walter Bienert, Beinerts Sohn, Student
Oskar Sima
as Karl Zülke, Portier
Heinrich Gretler
as Kurt Brann, sein Untermieter
Julius Falkenstein
as Anatol Scherr, ein Hausbewohner
Gerhard Bienert
as Baumann, Kriminalkommissar
Charlotte Ander
as Gerda Bienert - Bienerts Tochter
Annie Markart
as Erna Kabisch
Edith Meinhard
as Mella Ziehr