Murder on the Blackboard (1934)
Trailer

Murder on the Blackboard

Watch Murder on the Blackboard full movie online Movies123. Watch Murder on the Blackboard 123movies online for free. Murder on the Blackboard 123movies: 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.