Plays Musicals

What was the name of the radio play on which "The Mousetrap" was based?

More Questions from Plays Musicals
In Shakespeare's "Romeo and Juliet", which character is Romeo's cousin?
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Which US Founding Father is the titular character in this popular Broadway musical?
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The musical "Nine" is based on a film by which director?
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What was the final Broadway score written by Cole Porter?
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What is a common nickname for Broadway?
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Which classic character has been played on Broadway by Sebastian Bach and David Hasselhoff?
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The musical "Ragtime" is based on which man's 1975 novel?
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Complete the name of the play "To Kill a ___"?
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