Martine is a young woman of aristocratic origin who does not know the man to whom she is promised. She decides to set up a coup with a schoolteacher friend. She is responsible for flirting with the fiancé under the identity of Martine. The man is totally disappointing. Then Martine learns that he...
Darrac, a reporter for Paris-Inter, and Nicole, a journalist for Le Soir-Express, know each other, compete and end up falling in love over the three police investigations they follow for their newspapers.
A resistance leader is wounded when the Germans raid his underground print shop. He escapes to the home of a German-friendly Parisian and is helped by her son and daughter. A Jewish doctor also aids him. They all join him in his efforts against the Nazis and derail a munitions train.