Raised in a strict religious household, siblings Emily and Thomas are taught to suppress their natural desires. But when they're left alone one evening, the house filled with a tense silence, their pent-up longings begin to surface. Emily, haunted by the taboo thoughts running through her mind, can't resist the urge to explore her body, her fingers finding a rhythm that matches the silent prayers on her lips. Thomas, too, is plagued by forbidden thoughts, his body responding to images of his sister that he can't seem to shake. When their father returns home unexpectedly, they're forced to confront their actions, their guilt-ridden confessions echoing through the house as they struggle to find redemption from their sins.