Clément, a son of a French industrialist, belongs to a secret militant right-wing organization that uses violence to achieve its goals. His wife Anne, a former German actress, knows of his extremist views and suspects he would kill if necessary. After Clément and a colleague assassinate a Communist figure, they hide out at a country home of Clément's childhood friend Paul, a democrat and pacifist.
Le combat dans l'île
Fleeing a failed assassination attempt, a couple seeks solace in a secluded island retreat, hoping to evade capture and find refuge in their friend's isolated home.