On Secret Service

On Secret Service is a 1933 British thriller film directed by Arthur B. Woods and starring Greta Nissen, Karl Ludwig Diehl, Don Alvarado and Austin Trevor. It was produced by British International Pictures.

Three years later, Italy and Austria stand against each other in World War I. Von Hombergk has returned to Vienna and asks the secret service for a chance to clean his name from the suspicion of being a spy and a traitor. At least, he is given an Italian uniform and flies to Italy to look for the traitor who put the plans in his office desk three years ago. When landing in Italy, he gets wounded as Italian artillery fires at him, but manages to get out of danger before falling unconscious. When he reaches consciousness again, he is in a military hospital. Here he remeets Marcella, who is looking for enemy agents and is really shocked when recognising him. As she is in love with him, she offers him the chance to leave Italy as a free man. But to his disappointment she is unwilling to tell him the name of the agent who threw suspicion on his name.Therefore, Hombergk stays in Italy and sets off to Rome as soon as he has got well again. He wants to talk to an antique dealer called Da Villa there who is a faithful Austrian agent. Among Da Villas regular customers is also Count Valenti, who is well known as a collector of valuable pictures. At this journey Hombergk meets a dubios Mr Bluenzli, whom he does not consider to be trustworthy. Once he had arrived in Rome, he easily discovers that the traitor he is looking for acts under the code name of K 77. At a meeting with Da Villa, he gets connections to Coronello Ramenelli, chief of the Italian counterintelligence, who is Marcella Galdis boss and also a friend of Count Valenti. At a dinner party at Ramenellis villa, she and Hombergk remeet again, and again she does not tell him on. They even spend the night together, but even now Marcella is unwilling to discover him the name of the man who threw suspicion on him. Suddenly Ramenelli appears on the scene. Marcella manages to hide Hombergk, but she cannot avoid him from overhearing that K 77 will arrive soon from Vienna. For her boss does not know the man personally, he ord

Source: Wikipedia