The love story of Pascal and Hélène who meet at Françoise's birthday party and the love story of Gérard, Pascal's confidant, and Françoise who invited Pascal and Hélène to her birthday party.

Jeanne writes during WW II for a French clandestine journal. She is engaged to resistant leader Victor Devère but has a love affair with the young resistant Marc Hétier. But is Marc really trustworthy?