The Sealed Book - Murderer Unknown
From-1945
Host-Philip Clarke
A successful businessman gets black-bordered letters that threaten his life.
The Sealed Book was a horror and mystery series aired on Mutual from June to September 1945. Produced by Jock MacGregor, aired for 30 minutes Sunday evenings. Philip Clarke was the show’s host, while David Kogan and Robert Arthur Jr. were the scriptwriters. Kogan and Arthur were also the writers behind the radio anthology, The Mysterious Traveller.
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