Western Pennsylvania, 1922. With the horrific atrocities of warfare etched on his mind, an emotionally scarred World War I veteran almost annihilates his entire family in cold blood. Eight years later, novice nun Rose, the massacre's only survivor, hesitates to take her final vows, as if she knows her dark past is about to return with a vengeance. And as demonic voices plague her fragile soul, urging the cloistered nun to spill innocent blood, Rose's haunting visions grow stronger by the minute, inviting the blackest of evil. But darkness is hereditary. Is Dad's evil now a part of Rose, threatening to burst out and shake the convent to its foundations?