Mrs. Shaw is brought to Mr. Shaw's large room to stay for the night, urged to embrace her role as his wife despite their distant relationship. After preparing her in a revealing outfit, Mr. Shaw refuses to share the room, citing an imminent, severe episode of his illness that worsens on full moon nights. Despite advice suggesting Mrs. Shaw might be a cure, Mr. Shaw insists she leave, fearing he will lose control and harm her. As the full moon rises, his terrifying episode begins, leaving Mrs. Shaw alone and vulnerable in the house.