Upon the death of an old priest, the leaders of his diocese discover that he was actually a woman. Without anyone suspecting, she had been serving her vocation for years. Appalled, the bishop decides to conduct an internal investigation in the utmost secrecy, charging the chancellery of the diocese with understanding how such a deception was possible. This surprising religious thriller raises important questions about concealment and dogma, all led by the remarkable Karin Viard, who brings a great deal of humanity to her character.