It was Isabel Calvert's pious Christianity that drove her husband Theodore away and, when he left, it was the Church that replaced him in his daughters' upbringing. By the time Isabel died, it was the Blessed Sacrament Convent that the daughters, Anna and Therese, were calling home. And while Anna rebelled and returned to the real world, Therese is still consumed by the life of duty and worship. In the midst of this arrives the mysterious Francis: a young, good-looking gardener. Although the nuns are besotted by his charm and handiwork, Anna is less convinced by his motives.