Who Killed Mr Stefano (Aka Opera Murder, Pretty Hands Couldn't Do It)

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Mr. and Mrs. North are fictional American amateur detectives. Created by Frances and Richard Lockridge, the couple was featured in a series of 26 Mr. and Mrs. North novels, a Broadway play, a motion picture and several radio and television series.

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“Who Killed Mr Stefano (Aka Opera Murder, Pretty Hands Couldn't Do It).” Mr and Mrs North. Radio broadcast, December 5, 1950.