An Edinburgh travel agent loses his keys and his fiancé in one night. A friend finds the keys and makes loads of copies with his address attached as a joke. She gives them to him as he leaves for a holiday. He gives the keys to several women he romances across the continent. He gets engaged again by phone and arranges to meet his fiancé at his flat, but the flat isn't empty...
Don't Bother to Knock is a 1961 British comedy film directed by Cyril Frankel starring Richard Todd, Nicole Maurey, Elke Sommer, June Thorburn, Rik Battaglia and Judith Anderson. The screenplay is by Denis Cannan and Frederic Gotfurt, based on the 1959 novel of the same name by Clifford Hanley.