Perhaps Hitchcock's most suspenseful film, masterful in its visual storytelling, with James Stewart giving one of the best performances of the 1950s. Having broken his leg on assignment, Stewart's globetrotting photojournalist is laid up in his Manhattan apartment and bored stiff. Despite admonitions from his glamorous girlfriend Grace Kelly, his favorite diversion is to spy on his neighbors, framed screen-like in their windows across the courtyard from his. But when one half of a constantly bickering couple mysteriously disappears, Stewart suspects he may be witness to a murder.