Italy, 1347: Bored, volatile nuns Alessandra (Alison Brie), Fernanda (Aubrey Plaza), and Ginevra (Kate Micucci) live in a monastery under the watchful eye of Father Tommasso (John C. Reilly). The arrival of a handsome new groundskeeper (Dave Franco) – introduced to the sisters as a deaf mute to discourage temptation – soon leads to a frenzy of hormones, substance abuse, and wicked revelry.