Would you like an invitation to our beta?
|Jean Simmons||Sophie Malraux|
|Trevor Howard||Maj. David Somers|
|Sonia Dresdel||Jess Fenton|
|Barry Jones||Nicholas Fenton|
|Kenneth More||Willy Shepley|
|Geoffrey Keen||Police Inspector|
|André Morell||Secret Service Chief Chubb (as Andre Morell)|
|Michael Brennan||Police Superintendent|
|Gerard Heinz||Dr. Karl Cesare|
|Lily Kann||Minna Cesare|
|Richard Wattis||Employment Agent|
After leaving the British Secret Service, David Somers (played by Trevor Howard) finds work cataloging butterflies at the country house of Nicholas and Jess Fenton. (The "clouded yellow" of the title is a rare species of butterfly.) After the murder of a local gamekeeper, suspicion (wrongfully) falls on their niece, Sophie Malraux (Jean Simmons). Somers helps Sophie to escape arrest and they go on the run together, Somers using his secret-service skills and contacts to evade the police. After a cross-country chase they arrive at Liverpool with the intention of leaving the country by ship. The true identity of the murderer is revealed in a climax on a warehouse roof.