Women from Allied nations are rounded up and taken prisoner in Shanghai by Nazis looking for the murderer of a German officer. While being detained, the women, used as informants and for the "entertainment" of the Germans and Japanese, furtively work for the Chinese underground. They are
finally freed when American OSS man Henry flies in to break up a "cosmic ray" plot between the Axis partners. Supposedly based on United Nations files on crimes against women in WW II.