After the King of Ruthenia 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.
Leonard Lee | Screenplay |
Saul A. Goodkind | Editor |
Arthur Conan Doyle | Characters |
Roy William Neill | Director |
Paul Ivano | Director of Photography |
Russell A. Gausman | Set Decoration |
Howard Benedict | Executive Producer |
Roy William Neill | Producer |
John B. Goodman | Art Direction |
Ralph Sylos | Set Decoration |