Chiara is a young teacher who lives the horror of war trying desperately to make sense of what is happening. In the aftermath of the armistice, plagued by a thousand doubts and a thousand questions, while she wanders through the bombed-out city, she stops in front of a statue of the Madonna and realizes that God is the only ideal that has not collapsed. Thus she chooses to live the Gospel concretely with a single mission: to ensure that "all may be one".