Jacques (Lindon), a highly respected reporter working for a major French newspaper, lives a reclusive life suffering from PTSD following his time reporting in Syria. When he is contacted by the Vatican to lead a canonical investigation into a young girl claiming to be visited by the Virgin Mary, he is cynical. However, there he meets the sensitive and devout Anna (Bellugi), who forces him to confront his own beliefs, the politics of the church and the nature of faith as the mystery surrounding the apparitions unfolds.