In 1919, Mathilde was 19 years old. Two years earlier, her fiancé Manech left for the front at the Somme. Like millions of others he was "killed on the field of battle." It's written in black and white on the official notice. But Mathilde refuses to believe it. If Manech had died, she would know. She hangs on to her intuition as tightly as she would onto the last thread of hope linking her to her...