Murder on the Blackboard 1934

Synopsis:

There are plenty of guilty secrets at the school where Hildegarde Withers teaches. When she finds the body of the pretty music teacher, she calls in her old friend Inspector Piper, who promptly arrests the obvious suspect. Clues multiply and everyone looks suspicious as Piper and Miss Withers continue their battle of the sexes.

Directed by: George Archainbaud
Written by: Willis Goldbeck
Runtime: 71 minutes
Tagline: They Laughed When Miss Withers Sniffed a Clue; But Kicked Themselves Ever After for Laughing
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Cast:
Edna May Oliver
Edna May Oliver
Hildegarde Withers 
James Gleason
James Gleason
Inspector Oscar Piper 
Bruce Cabot
Bruce Cabot
Addison 
Gertrude Michael
Gertrude Michael
Jane Davis 
Regis Toomey
Regis Toomey
Detective Smiley North 
Edgar Kennedy
Edgar Kennedy
Detective Donahue