Raffles is a gentleman thief known as the Amateur Cracksman, with a penchant for art and jewelry. However, after re-uniting with his old school chum's sister Gwen, he becomes a reformed man. Then, on a weekend at her parents' country house, a necklace presents an irresistible temptation.
David Niven as A.J. Raffles
Olivia de Havilland as Gwen
Dame May Whitty as Lady Melrose
Dudley Digges as MacKenzie
Douglas Walton as Bunny
E.E. Clive as Barraclough
Lionel Pape as Lord Melrose