In Vienna, Captain Karl von Radenpurchases a returned ticket to a sold-out opera and finds himself sharing a loge with a lovely woman. Though she at first repulses his attention, she ends up spending an idyllic day with him in the countryside. Karl is soon called away to duty. Colonel Eric von Raden, his uncle and the chief of the secret police, gives him secret plans to deliver to Berlin. He also warns his nephew that the woman he's got the hots for is Tania Fedorova, a Russian spy. Tania comes to him aboard the train, professing to love him, but he tells her he knows who she is. Dejected, she leaves. The next morning, when Karl wakes up, he finds the plans have been stolen. 

DVD-R has English intertitles with switchable French and Spanish subtitles. Approx. 89 mins. See film sample for audio and video quality!