[1] It was made by German's largest studio Universum Film, with sets designed by art director Erich Kettelhut.

It was based on a 1927 play of the same title by Max Alsberg and Ernst Hesse.

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.

The film was shot from February 18 to March 1931 in Berlin-Tiergarten and in the Ufa studio in Neubabelsberg.

The street signs and house numbers in the picture indicate Mittelstraße 63 as the location of the action.