Poor physics student Marie is studying at the Sorbonne in 1890s Paris. One of the few women studying in her field, Marie encounters skepticism concerning her abilities, but is eventually offered a research placement in Pierre Curie's lab. The scientists soon fall in love and embark on a shared quest to extract, from a particular type of rock, a new chemical element they have named radium. However, their research puts them on the brink of professional failure.

An American goes to pre-war Germany to find his mother and discovers her in a concentration camp. With the help of an American-born widowed countess he seeks to engineer her escape.

During WWII, when an allied bomber is shot down over Germany, the five surviving crew are captured but cleverly escape detention after learning German secret information and knocking out a Nazi major. With the angry major in hot pursuit, aided by military personnel, Gestapo agents and Hitler-loyal citizens, the five wend their way across perilous Germany, intent on reaching the UK with the secrets they have learned.

A middle aged composer returns to Vienna after ten years in America, falls in love with a Japanese student and writes his last opera for her.

Rodrigo Borgia, Pope Alexander VI, has three adult children: Juan, who is virtuous and has a sweetheart who is a woman of the people, Lucrezia, who is virtuous and wants to marry Alfonso, and Cesare, who is wicked and lusts after Lucrezia, Juan's girlfriend, and probably others. Cesare has vowed to kill any suitor for Lucrezia's love, and he has three thugs to carry out his wishes. Bodies fall into the Tiber, into the Colosseum (with lions prowling), and onto the Vatican floors.

Aka Passport to Heaven. In Prussia shoemaker Voight needs a residence permit to get a job, but can only get a job if he already has a permit. He dons a captain's uniform to order a platoon of soldiers to Koepenick to take over the Town Hall to get his permit.

Toni van Eyck became known with her leading role in this early "Aufklärungsfilm" (education film) Gefahren der Liebe/A Woman Branded (Eugen Thiele, 1931) opposite Hans Stüwe. She played a rape victim, who finally becomes a murderess.