A young nun, her innocence still intact, is sent to clean the dusty, unused chapel. As she polishes the altar, she notices a hidden compartment. Inside, she finds a worn, leather-bound book filled with explicit illustrations and stories of debauchery. Her curiosity piqued, she begins to touch herself, her fingers sliding under her habit to stroke her virgin pussy. Just as she's about to reach her peak, the chapel door creaks open. Standing in the doorway is the stern-faced Mother Superior, her eyes widening in shock at the sight before her. But instead of scolding, she steps inside, locking the door behind her, a hungry gleam in her eyes. 'You've discovered our secret, child,' she says, her voice low and seductive.