A newly hired instructor at his former school is assigned to supervise the aging building slated for demolition, viewing the role as a chance to explore his concealed intentions. He begins by singling out one student for what he frames as private tutoring sessions, gradually drawing her into a series of unsettling encounters. Soon the situation expands to include her close friend, her mother, and a fellow educator, each pulled into the unfolding dynamic. Tensions rise as the teacher’s influence tightens around the group within the isolated corridors.