Lise believes in miracles. She also thinks that the best way to have your prayers answered is to call on the services of a true professional. So, to save her son, she appeals to Father André. But André is an insufferable misanthrope who has lost faith in everything. He refuses to help her. After arguing with him, she decides to take him as her hostage. This is the story of a young woman, as determined as she is desperate, who compels a priest to live up to his calling.