Cary Grant plays John Robie, a reformed jewel thief who was once known as "The Cat," in this suspenseful, classic Alfed Hitchcock thriller. Robie is suspected of a new rash of gems thefts in the luxury hotels of the French Riviera, and he must set out to clear himself. Meeting pampered heiress Fra... Cary Grant plays John Robie, a reformed jewel thief who was once known as "The Cat," in this suspenseful, classic Alfed Hitchcock thriller. Robie is suspected of a new rash of gems thefts in the luxury hotels of the French Riviera, and he must set out to clear himself. Meeting pampered heiress Frances (Grace Kelly), he sees a chance to bait the mysterious thief with her mother's (Jessie Royce Landis) fabulous jewels. His plan backfires, however, but Frances, who believes him guilty, proves her love by helping him escape. In a spine-tingling climax, the real criminal is exposed. Three Academy Award nominations, including an Oscar for "Best Cinematography."