Build a movie plot around this: What is the name of the insurance man? H.H. Hughson (John Williams)
"The Cat" is John Robie (Cary Grant). Now a respectable and well-to-do grower of grapes and flowers on the French Riviera, before World War II he was a jewel thief -- a cat burglar -- who was imprisoned but granted parole so he could fight the Germans. Someone is using the Cat's M.O. to steal jewelry again, and the police think Robie must be involved. When they visit his handsome stone villa to take him in for questioning, he gives them the slip with help from his housekeeper Germaine (Georgette Anys), who leads the cops on a car chase while Robie catches the bus.He drops in on his old gang from the French Resistance, a group of ex-cons whose war work, like Robie's own, led to grants of parole that depend on keeping their noses clean. Restaurant manager Bertani (Charles Vanel), wine steward Foussard (Jean Martinelli), and the others are all under a cloud while the Cat is at large, and they blame Robie. Still, when the police arrive at Bertani's restaurant, Foussard's teenaged daughter Danielle (Brigitte Auber), who has apparently enjoyed flirting with Robie in the past, spirits him across the bay in a motorboat to the safety of a Cannes beach club.Robie enlists the aid of an insurance man of Bertani's acquaintance, H.H. Hughson (John Williams) of Lloyds of London, in order to prove his innocence. Robie's plan is to catch the new cat burglar in the act. To do this, he obtains a list of the most expensive jewels on the Riviera from the reluctant Hughson. The first name on the list is Jessie Stevens (Jessie Royce Landis), who is traveling with her daughter Francie (Grace Kelly). Robie strikes up an acquaintance with them -- one met with delight by Jessie, a pretense of modesty by Francie, and claws-baring jealousy from Danielle.Francie is not afraid of a little fun. Although she sees through Robie's cover as an American industrialist, the considerable charms of this thief are worth catching. She dangles before him her jewels, teases him with steamy tales of rooftop escapades, exposes herself as a feline of a...