Eight people at a remote Scottish inn find themselves confronted by a woman from Mars, who has landed her flying saucer for repairs but intends to soon conquer the Earth and enslave its men for breeding purposes.

• Danziger Productions Ltd.
• Patricia Laffan
• Hugh McDermott
• Hazel Court
• Joseph Tomelty
• Adrienne Corri
• Peter Reynolds
• Sophie Stewart
• John Laurie