In this one-of-a-kind feature, Reginald Owen stars as Sherlock Holmes. The great detective is charged with investigating the slayings of members of an organization known as "The Scarlet Ring". When he visits the stately home Mrs. Pyke, the widow of one of the deceased victims, Holmes must face his ultimate challenge. The climactic scenes take place on a foggy night filled with shrieks, dark figures, hidden passages and a none-to-friendly Asian man servant.