A semi-documentary experimental 1930 German silent film created by amateurs with a small budget. With authentic scenes of the metropolis city of Berlin, it's the first film from the later famous screenwriters/directors Billy Wilder and Fred Zinnemann.

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.

Hella lives in a boarding house and has various romantic adventures before settling down with vacuum cleaner salesman Winkler.