Susanna is about to become a nun in three days, and she finds herself sharing a room with an older nun, Teresa. This situation leaves her feeling confused and uncertain about whether she can successfully go through with the profession rite. The movie doesn't rely on common genre tropes like jump scares or direct gimmicks. Instead, it progresses through subtle metaphors and an atmospheric tone. At the heart of the film is actress OH Woori, whose presence embodies the genre and whose performance is profoundly impactful.