

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.
Hildegarde Withers

Police Insp. Oscar Piper

Stevens

Jane Davis

Detective Smiley North

Detective Donahue

MacFarland

Leland

Otto (as Fredrik Vogeding)

Louise
Dr. Von Immen

Detective McTeague
Dr. Levine

Bearded Diner (Uncredited)

School Boy (uncredited)

Diner Counterman (uncredited)

Policeman (uncredited)