A fourteen-year-old reservation girl, Marie, is passionate about praying and devotion to Western religion. As a Native-American girl, she feels she would be accepted at the convent because she is white-passing. Upon admission to the convent, Marie is subject to the wrath of Sister Leopolda, who declares that the Devil is obsessed with Marie and wants to get her. Sister Leopolda was obsessed with Satan and carried around a long iron pole for opening windows, which she could use to poke and/or attack Satan. Sister Leopolda would use this tactic to hit and psychologically torture individuals in the convent, claiming that Satan was around or attacking them.

Sister Leopolda told the only Native-American child, Marie, that the Dark One wanted her most. One day, Marie heard Satan in the classroom closet. Sister Leopolda sensed Marie’s intuition and stabbed the pole through the closet behind Marie. She then forced Marie into the closet. After letting Marie become highly disturbed in the closet, Sister Leopolda pulled her out and explained what Satan wanted. It is revealed that Sister Leopolda is the nun who sponsored Marie to join the reservation, but in doing so, made a series of hurtful and racist remarks to Marie.

Marie realized that Sister Leopolda had a habit and had keys to the closet with all the food. Marie wanted this and more; she wanted better adornments than sister Leopolda had. They began to make bread together, and Sister Leopolda told Marie that she was the one who brought the Devil into the convent. Marie drops a cup, and it rolls under the stove. As she goes to pick it up, Sister Leopolda pours boiling water over Marie’s back. Marie prays intensely and has visions that she is a Saint. No one finds out about the incident. Later, when they continue working in the kitchen, Marie attempts to push Sister Leopolda into the oven. In response, Sister Leopolda stabs Marie’s hand with a fork, and Marie falls unconscious.

Marie awakes in a white cot surrounded by kneeling sisters calling for her. She is akin to a saint now. She sees Sister Leopolda among the nuns. Marie calls Sister Leopolda, and Sister Leopolda reveals that she told the sisters that Marie was injured from a heavenly vision from God, which placed nails in her hand.

Then Marie realizes she pitied sister Leopolda and understands this would not happen to anyone else after she leaves. She tells sister Leopolda to touch her sacred blood as dust falls around the room.