After narrowly escaping another encounter with Vandamm's henchmen, Roger goes to the United Nations, where the real Townsend is giving a speech. Accompanied by his mother, he searches Kaplan's vacant room at the Plaza Hotel, where he discovers little other than that Kaplan is a shorter man than he and that seemingly none of the hotel staff have ever met the elusive spy in person. To clear his name, Roger attempts to find George Kaplan. The following day, he takes the skeptical police and his equally skeptical mother ( Jessie Royce Landis) to the Townsend mansion where he was abducted, only to find Vandamm gone and the housekeeper, who's another Vandamm associate, claiming that Roger stole the car after getting drunk at a party there. One car chase later, Roger escapes but is arrested for drunk driving. His henchmen, led by the sinister Leonard ( Martin Landau), decide to stage a fatal accident by forcing Roger to consume a full bottle of bourbon and then placing him at the wheel of a stolen car and sending him down a trecherously winding cliffside road.

When Roger insists he isn't the spy, Vandamm orders him killed. Through a case of Mistaken Identity, Vandamm believes Roger to be George Kaplan, an American spy who's been tailing him. Thornhill (Grant) finds himself abducted by enemy agents working for the master foreign spy Phillip Vandamm ( James Mason), who is currently masquerading as the diplomat Lester Townsend. Shortly after the film begins, Manhattan advertising executive Roger O. You may know it as 'the one with the climax on Mount Rushmore.' Or, better still, as 'the one where Cary Grant gets chased by a crop duster,' a scene which has often been homaged. A classic 1959 thriller by Alfred Hitchcock, in which an innocent man is mistaken for a spy and pursued halfway across the USA by enemy spies searching for a MacGuffin.

Another Shore by George Hitchcock