Casablanca 1942. While French Police Chief Maurice Desjardins is busy having careless fun with some loose girls, members of the French Resistance kill a man at the harbor and steal his briefcase full of important documents from the Third Reich. At an apartment building in the distance, Andre Kuhn watches the whole operation through his powerful binoculars. He is posing as a businessman but actually working as a spy for the Germans a fact totally ignored by his live-in girlfriend Teresa Villar, a beautiful Spanish singer who works at El Dorado Night Club. Andre telephones Max von Stauffen, the head of German Intelligence in Casablanca, to inform him of what he has just witnessed. Max tells him to stay put until he arrives in order to get the information personally but, by the time he reaches Andres apartment, he finds him dead with a gun shot on his temple.

France under the Occupation. Executed for treason against the Resistance, Cora, code-named "La Chatte", was left for dead. Recovered and cared for by the Germans, Dr. von Hollwitz brainwashed her to control her and use her as a counter-espionage. In the spring of 1944, her escape was faked so that she could resume contact with the Resistance. She has to scupper the mission of Charles, an engineer with the SNCF, to blow up a train loaded with V1s intended to power the launch pads set up on the French coast to bomb London. But at the last moment, La Chatte regains her lucidity.

The beautiful Beatrice Cenci, daughter of the noble Francesco, falls in love with Olimpio. But she has to face the jealousy of his violent and morbid father, and the hostility of his stepmother Lucrezia, who has a relationship with her other stepson, James. The stepmother and stepson-lover plan to kill Francesco. And when the latter dies accidentally, they decide to put the blame on Beatrice and Olimpio.

The great King of Dacia, Decebal (Decebalus), is disposed to make the ultimate sacrifice in order to keep the integrity of his people. His own son, Cotyso, is given to the god Zamolxis to the dismay of the King and his daughter Meda. Septimius Severus, a young Roman devoted to his adopted country, must make the choice between his blood origins and the culture he was introduced to.

Novitiate Ursula leaves the convent and becomes involved with Lambert, who blames her lecherous uncle, the count Ribera, for his sister's death.