Original air date: ( August 19, 1942)Plot: "The Cave Of Ali Baba". An adventure of Lord Peter Whimsey, the gentleman crime buster. A secret voice-operated vault helps him to break up a masked society of crime. The story is based on, "The Adventurous Exploit Of The Cave Of Ali Baba (written in 1928). + In a grim and narrow house in Lambeth a man sits eating kippers and reading the daily paper. He has just finished eating and is sipping his coffee when a slight noise at the front door catches his ear. Swiftly, too swiftly for a quiet little man, he springs up and dashes through to the small hallway and flings open the door. There is no-one in sight. And, as if he knew what he would find, he shuts the door and turns to the hat-stand in the hall. An envelope has been placed there.