September 1914. War rages between France and Germany. René, a young soldier, sent as a scout with two comrades, has the mission of warning the authorities of the advance of German troops. In the back, his wife, Brooke, waits tirelessly for his return, as guardian of the home. Despite the distance, they communicate mentally, their voices meet, they call each other, they tell each other about their terrible daily lives. Especially for René, the situation is becoming critical: the Germans are after them and he will soon have to obey the harsh law of military honor.