After leaving the British Secret Service, David Somers finds work catalouging butterflies at the country house of Nicholas and Jess Fenton. After the murder of a local gamekeeper, suspicion falls on their niece, Sophie Malraux. Somers helps Sophie to escape arrest and they go on the run together.

• Carillon Films
• General Film Distributors
• Jean Simmons
• Trevor Howard
• Sonia Dresdel
• Barry Jones
• Kenneth More
• Geoffrey Keen
• André Morell
• Michael Brennan