Lester and Carolyn Burnham are, on the outside, a perfect husband and wife in a perfect house in a perfect neighborhood. But inside, Lester is slipping deeper and deeper into a hopeless depression. He finally snaps when he becomes infatuated with one of his daughter's friends. Meanwhile, his daughter Jane is developing a happy friendship with a shy boy-next-door named Ricky, who lives with an abusive father.

George Bailey has spent his entire life giving of himself to the people of Bedford Falls. He has always longed to travel but never had the opportunity in order to prevent rich skinflint Mr. Potter from taking over the entire town. All that prevents him from doing so is George's modest building and loan company, which was founded by his generous father. But on Christmas Eve, George's Uncle Billy loses the business's $8,000 while intending to deposit it in the bank. Potter finds the misplaced...

Madison Avenue advertising man Roger Thornhill finds himself thrust into the world of spies when he is mistaken for a man by the name of George Kaplan. Foreign spy Philip Vandamm and his henchman Leonard try to eliminate him but when Thornhill tries to make sense of the case, he is framed for murder. Now on the run from the police, he manages to board the 20th Century Limited bound for Chicago where he meets a beautiful blond, Eve Kendall, who helps him to evade the authorities. His world is...

Professional photographer L.B. "Jeff" Jeffries breaks his leg while getting an action shot at an auto race. Confined to his New York apartment, he spends his time looking out of the rear window observing the neighbors. He begins to suspect that a man across the courtyard may have murdered his wife. Jeff enlists the help of his high society fashion-consultant girlfriend Lisa Freemont and his visiting nurse Stella to investigate.

In World War II Casablanca, Rick Blaine, exiled American and former freedom fighter, runs the most popular nightspot in town. The cynical lone wolf Blaine comes into the possession of two valuable letters of transit. When Nazi Major Strasser arrives in Casablanca, the sycophantic police Captain Renault does what he can to please him, including detaining a Czechoslovak underground leader Victor Laszlo. Much to Rick's surprise, Lazslo arrives with Ilsa, Rick's one time love. Rick is very bitter...