Overview

A convicted thief in Dartmoor prison hides the location of the stolen Bank of England printing plates inside three music boxes. When the innocent purchasers of the boxes start to be murdered, Holmes and Watson investigate.

Cast

Basil Rathbone

Sherlock Holmes

Nigel Bruce

Dr. John H. Watson

Patricia Morison

Mrs. Hilda Courtney

Frederick Worlock

Colonel Cavanaugh

Harry Cording

Hamid

Carl Harbord

Inspector Hopkins

Holmes Herbert

Ebenezer Crabtree