In Camelot, kingdom of Arthur and Merlin, Lancelot is well known for his courage and honor. But one day he must quit Camelot and the Queen Guinevere's love, leaving the Round Table without protection.

Private eye Edward Mercer travels to Venice to locate a man due a reward for his aid in the war. Shortly after arriving, he becomes the prime suspect in the murder of his local contact. In his quest to clear his name, Mercer uncovers a conspiracy. Even the local magistrate seems to be working against him, and Mercer begins to suspect the man he came to find is behind it all.

Story of a grocer who wins a radio song writing contest and is signed on by a music publisher. Placed in a luxury flat in London he is like fish out of water.

James Stewart plays aeronautical engineer Theodore Honey, the quintessential absent-minded professor: eccentric, forgetful, but brilliant. His studies show that the aircraft being manufactured by his employer has a subtle but deadly design flaw that manifests itself only after the aircraft has flown a certain number of hours. En route to a crash site to prove his theory, Honey discovers that he is aboard a plane rapidly approaching his predicted deadline.