Foreign agents operate in countries of interest in times of peace, belligerence, and war. Their purpose is to seek pertinent information and pass it on to the country of their allegiance, and be open to opportunistic means of causing havoc and unrest among the local populace.

In 1941, Germany's vision of world domination sparks several baffling murders in the city of Los Angeles, The striking figure of Erika Willets, whose biography is as imposing as her physical appearance, adds another dimension to a puzzle whose pieces do not seem to fit. Although the modus operandi, locations, and background of victims differ, it appears there may be linkage. A newspaper reporter and a detective are unwittingly thrust together to find answers to the recent killings.

American Fräulein evokes an interest in Erika, whose persona parallels the beauty and the beast, and reveals a spy mystery with heightened emotions and an out of box storyline.