In modern-day London, a sex criminal known as the Necktie Murderer has the police on alert; and in typical Hitchcock fashion, their trail is leading to an innocent man who must now elude the law and prove his innocence by finding the real murderer.

Barry Kane is a Los Angeles aircraft factory worker who witnesses a Nazi agent firebombing his plant. However, it is Barry who is accused of the fiery sabotage, and to clear his name he sets off on a desperate, action-packed cross-country chase that takes him from Boulder Dam to New York's Radio City Music Hall to the top of the Statue of Liberty. Hitchcock's first film with an all-American cast moves with breakneck speed toward its final heart-pounding...

Two thrill-seeking friends strangle a classmate and then hold a party for their victim's family and friends, serving refreshments on a buffet table fashioned from a trunk containing the lifeless body. When dinner conversation revolves around talk of "the perfect murder," their former teacher becomes increasingly suspicious that his proteges have turned his intellectual theories into brutal reality.