Based on Agatha Christie's "The Secret Adversary," a young couple looking for adventure become involved in the mystery of a missing woman and an espionage ring.

1926 film by Louis Ralph

The already successful tenor Mattei is discovered after he already retired into private life. Der Wiener Staatsoper place a significant part in this musical comedy drama.

1940 film by Max Nosseck

The First World War. The young, English Lieutenant Raleigh is sent to the company of a disillusioned Captain Stanhope. Stanhope is secretly engaged to Raleigh's sister and is intent on protecting his image of an exemplary officer. An attack on the German lines, in which Raleigh also takes part, has turned into a bloody fiasco. Now Raleigh, too, knows the horrors of war, which have already taken their toll on Stanhope.

An unknown gang has again broken into a van containing money from the European bank. Banker Sam Hamilton decides to use an armoured car for the next money transport. He hires racing driver Charly Allan as the driver. Allan is invited to Hamilton's house for a party. During a dance with the banker's daughter Bessy he is attacked by bandits, pushed to the ground and Bessy is kidnapped.

When the Soldiers is a 1931 German comedy film directed by Jacob Fleck and Luise Fleck and starring Otto Wallburg, Gretl Theimer and Ida Wüst.