Although Germany surrendered a few months earlier a group of Nazis have ensconced themselves in Shanghai and are working on a "cosmic ray gun" which is supposedly a thousand times more powerful than the atomic bomb that was just dropped on Nagasaki. At first they had planned to give the Japanese their documents but realizing that Japan could not hold out much longer they have decided to stall for time in order to eventually return to Germany with it and start World War III. However, needing to make sure their stall tactics work they seize several Caucasian women who attend Shanghai University and force them to work as "hostesses" for German and Japanese officers. Essentially then, this is a film that bears some resemblance to a "Women-in-Prison" (WIP) picture but being produced in 1948 it skillfully avoids some of the risqué scenes generally found in movies of this type--preferring a more subtle approach instead. Unfortunately, it pretends to be based on historical events and then completely turns history on its head. Likewise, having certain women representing a specific country was a bit too corny in my opinion. But then again, this movie was produced in 1948 and playing up to patriotism was typical for this time. In any case, other than "Li Leng" (Frances Chung) there weren't really any characters who seemed to stand out. In short, while as a WIP film it may have been ahead of its time, it still wasn't that solid and I rate it as slightly below average.