Secrets of the Lone Wolf

Michael Lanyard, the reformed criminal known as the Lone Wolf, is played in this Columbia B picture by the suave Warren William. The script contrives to have Lanyard's faithful butler Jamison (Eric Blore) to be mistaken for his boss by a gang of jewel robbers. They force poor Jamison to participate in the theft of the valuable "Napoleon gems" which Lanyard has been hired to protect... (allmovie.com)