It is based on the popular West End stage comedy by Terrence Rattigan. It all begins when Diana (Ellen Drew), the sister of a British boy studying in France, arrives in town to flirt with all of her brothers' schoolmates. Alan (Ray Milland), one of the students, successfully resists Diana's charms-meaning of course that Alan and Diana will be in each other's arms by fadeout time. (AllMovie)
Ray Milland
Ellen Drew
Janine Darcey
David Tree
Roland Culver
Guy Middleton
Kenneth Morgan
Margaret Yarde
Toni Gable
Jim Gérald
Mantovani
Stella Roberts