Inner Sanctum Mystery, a popular horror anthology series that
aired from January 7, 1941 to October 5, 1952. It was based on
the mystery novels of Simon and Schuster. A total of 526 episodes
were broadcast. Boris Karloff, who was heard regularly during the
first season, starring in more than 15 episodes and returned often
thereafter.The show moved to CBS in the fall of 1943.
Boris Karloff
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