Cory Devil, a man of extreme contrasts, finds himself in a cramped closet with his sister, their bodies pressed together in the dim light. As they whisper prayers of penance, their bodies betray them. Cory's cock, a symbol of temptation, grows hard against his sister's thigh. She, too, feels the heat, her panties damp with desire. Their religious fervor fades as they give in to their taboo lust, their moans of ecstasy filling the tiny space as they sin together.