During the War, a British agent travels to the remote Glennye Castle in the wilds of Scotland to investigate a mysterious murder by a masked phantom. Who or what is the phantom? And how are the Germans involved?

• Unicorn Film Corporation
• Mara Russell-Tavernan
• Robert Essex
• Karl Meir
• James Liggat
• John Gauntley
• Alastair Hunter
• Maureen O'Moor