|Clark Gable||Gerald Meldrick|
|Rosalind Russell||Anya Von Duren|
|Peter Lorre||Captain Chang|
|Jessie Ralph||Duchess of Beltravers|
|Reginald Owen||The General|
|Eduardo Ciannelli||Hotel Manager|
Gerald Meldrick is a dashing international jewel thief with designs on a diamond held by the Duchess of Beltravers . He meets his match in the form of Anya Von Duren, a beautiful con artist. As they work against each other, Gerald acts as a Scotland Yard detective, and Anya adopts the identity of a haughty aristocrat. With an inspector and a greedy mercenary captain in hot pursuit, the two team up to pull off a big score.