Afghanistan 2014. As the withdrawal of troops approaches, Captain Antares Bonassieu and his squad have been assigned a surveillance mission in a remote valley of Wakhan, on the border of Pakistan. Despite Antares and his men's determination, control of the secluded valley will slowly fall out of their hands. One dark night, soldiers begin to mysteriously disappear in the valley.

Based on a true story, a 17th-century nun becomes entangled in a forbidden lesbian affair with a novice. But it is Benedetta's shocking religious visions that threaten to shake the Church to its core.