Overview
After the King of Rovenia has been assassinated, Holmes and Watson are engaged to escort his son to Europe via Algiers, aboard a transatlantic ocean liner which also carries a number of suspicious persons, any of whom may be involved in a plot to also assassinate him.
Cast & Crew
Director: Roy William Neill
Cast: Basil Rathbone, Nigel Bruce, Marjorie Riordan, Rosalind Ivan, Morton Lowry, Leslie Vincent, Martin Kosleck, Rex Evans, John Abbott, Gerald Hamer, William 'Wee Willie' Davis, Frederick Worlock
