The film is set in France during World War I. Bachelet's father and son are members of the French army . After the death of Bachelet Jr., he is called a national hero, actively using the fact of his death in the election campaign to fight communism. At the time of the opening of the monument in his honor, the hero himself appears, having returned to his homeland. It turns out that Bashlet Jr. was actually only shell-shocked, not killed. He uses the current situation to call on the audience to stop the imperialist war. This is followed by his arrest and charges of imposture.

Les Bachelet père et fils servent sous les drapeaux pendant la Grande Guerre; déclaré mort, le fils devient héros national, son sacrifice est monté en épingle dans le cadre de la campagne électorale en cours, violemment anticommuniste, jusqu'au jour de l'inauguration du monument qui lui est consacré.