The Adventures of Frank Race
Starring Tom Collins as adventurer and part-time insurance investigator Frank Race. Each episode starts with melodramatic organ music and this introduction:
"Many things were changed during the war. The face of the earth was altered and the people of the earth changed. Before the war, Frank Race was an attorney. But he traded his law books for the cloak and dagger of the OSS. And when it was over, his former life was over, too. Adventure had become his business -- The Adventures of Frank Race!"
Here is a sample of the online episodes currently available at The Old Time Radio Fan: