O.W. Fischer was an austrian actor.
1865: Swiss captain Bluntschli fights as mercenary in the war between Bulgaria and Serbia. When his group's attacked by a few Bulgarian troopers, he learns that he's got the wrong ammunition for his cannon and has to flee. His flight leads him right into the bedroom of his enemy's fiancée.
Someone is killing people related to a South American expedition. The means of murder are poison darts with rubber spiders attached to them. A writer and some police detectives investigate.
Bank accountant Thomas Lieven is forced to work as a triple agent for the British, the French and the Nazis.