In France, during the Second World War, journalist Paul Roy is a member of the Resistance, while his colleague and friend Jacques Médina is a collaborator. But it's thanks to Jacques that Paul is able to remain free, as he shelters him in his home after a roundup. The two friends co-wrote various Nazi propaganda articles, which appeared under Jacques' byline. The situation becomes complicated when Paul becomes the lover of Jacques' wife.

En France, durant la Seconde Guerre mondiale, le journaliste Paul Roy est un résistant tandis que son confrère et ami Jacques Médina est un collaborateur. Mais c'est grâce à Jacques que Paul doit de rester libre, car il l'abrite chez lui après une rafle. Les deux amis coécrivent divers articles de propagande nazie qui paraissent sous la signature de Jacques. La situation se complique quand Paul devient l'amant de la femme de Jacques...