Police Murder Investigation Frolich, Frank (Fictitious character) Gunnarstranda, Chief Inspector (Fictitious character) History Mystery fiction Private investigators World War, 1939-1945 Adultery Cold cases (Criminal investigation) Drug addicts Frøhlich, Frank (Fictitious character) Gunnarstranda, Inspector (Fictitious character) Holocaust survivors Holocaust, Jewish (1939-1945) Man-woman relationships Policewomen Secrecy Underground movements