Conspiracy (1939)

American Steve Kendall a freighters radio officer discovers seaman Carlson sending an unauthorized message ashore as the ship approaches his warpoised homeland Carlson is shot in cold blood when he jumps ship and Kendall implicated in the espionage swims ashore to avoid arrest A woman he meets at the dock hides him in her apartment where he learns Carlson was her brother and they both work in a sabotage ring Nedra is a singer at Tios Cafe and she approaches Tio for help when both the saboteurs and the secret police try to capture Steve