Holmes and Dr. Watson take on the case of a beautiful woman whose husband has vanished. The investigation proves strange indeed, involving six missing midgets, villainous monks, a Scottish castle, the Loch Ness monster, and covert naval experiments.

• Sir Nigel Films
• United Artists
• Robert Stephens
• Colin Blakely
• Geneviève Page
• Christopher Lee
• Tamara Toumanova
• Clive Revill
• Irene Handl
• Mollie Maureen