Affair in Monte Carlo, also known as 24 Hours of a Woman’s Life, is a 1952 British romantic drama film directed by Victor Saville and starring Merle Oberon. It is loosely based on the novella by Stefan Zweig.

Plot
Monsieur Blanc, the middle-aged proprietor of a café in Antibes, is eagerly preparing for his wedding to Henriette. He is devastated, however, when Henriette runs away with a young man she apparently only met the day before. Robert Sterling, a writer and one of the café patrons, tells the other diners that he has seen the same thing before: someone falling in love with a complete stranger.

He was playing host to Linda, a young widow whom he knew well, and three other guests aboard his yacht anchored in Monte Carlo. When he persuades her to visit the casino one night, she became irresistibly attracted to an unstable young man who became suicidal after losing all his money at roulette. Sterling describes how they fell deeply in love, and how they then had to face difficult decisions about the future.

Cast
Merle Oberon as Linda
Richard Todd as A Young Man
Leo Genn as Robert Stirling
Stephen Murray as L’Abbé Benoit
Peter Illing as Monsieur Blanc
Peter Reynolds as Peter
Isabel Dean as Miss Johnson
Yvonne Furneaux as Henriette
Joan Dowling as Mrs. Barry