A poor 22 years old Hungarian man who's recently arrived in Paris meets a seemingly wealthy 17 years old Parisian girl. They fall in love, but tragedy ensues when the truth behind the girl is revealed.
A family of wanderers adopts a girl who is left alone after getting lost. Meanwhile, his father adopts an orphan. Some time later, as an adult, the girl becomes the main attraction of the Luna Park where the wanderers work, and falls in love with the adopted son of the missing father. This arouses envy and spite from a barker from the Luna Park, secretly in love with the girl, who begins to spread slander on their behalf.
1760 Spain provides the setting for Giacomo Casanova's romantic escapades, every woman he encounters unable to resist his disarming charm, be they single, engaged, or even married.
Italian naval secret agents acquire a British codebook and the Italian counter-espionage agents start tracking enemy agents working undercover in Italy and providing false information.
Dennis O'Keefe plays a GI who falls in love with Mara Lane in postwar Rome. Lane kills her boss, forcing her to flee the law. O'Keefe goes along for the ride so that he won't be knocked off by Lane's husband. Just when it looks as though O'Keefe is willing to go to any lengths to protect the woman he loves, he discovers that she frankly isn't worth it.
On Christmas Eve, suffering from a case of writer's block, screenwriter Mark Christopher and his gofer Virgil get an unexpected visit from Sergeant Maizel. Knowing Christopher is working on a juvenile delinquent script, the sergeant brings by delinquent Susan thinking she will inspire Christopher while providing a place for her to spend the holidays outside of juvenile hall.