Natalie (Anne Shirley) receives an education at a private school thanks to a scholarship, though her status is undermined by the headmistress, 'Miss Brewster' (Cecil Cunningham). To navigate this situation, she agrees to act as a monitor, essentially a confidential informant for the administration, documenting any rule-breaking in a diary. When she reports 'Linda' (Nan Grey) for a late-night rendezvous with her boyfr…