Framton is a highly nervous gentleman visiting a peaceful country spot for a medically prescribed nerve cure. He suffers from severe social anxiety, which is worsened by the Edwardian requirement to call upon complete strangers. Seeking absolute rest and an absence of mental excitement, he hopes his rural retreat will provide tranquility.

Vera is Mrs. Sappleton's confident teenage niece. Tasked with keeping an unexpected guest company, she demonstrates a strong grasp of social conventions while carrying an inquisitive demeanor. She takes a particular interest in determining exactly how much Framton knows about her aunt and the local countryside before sharing the family's history.

Mrs. Sappleton is Framton's official host and Vera's aunt. She is a proper Edwardian lady who adheres strictly to the era's demanding etiquette and social customs. According to the history shared by her niece, she suffered a profound loss three years prior, an event that heavily influences her daily routines and her fixation on the large French window in her sitting room.

The party consists of Mrs. Sappleton's husband, her two younger brothers, and a brown spaniel. They departed for a day of snipe-shooting on the marsh, a routine outing that serves as the central focus of the Sappleton household's history. Their memory physically dominates the home's atmosphere.

Framton's sister previously stayed at a rectory in the same rural area four years prior. Concerned that her brother will isolate himself and worsen his nervous condition during his retreat, she writes letters of introduction to everyone she remembers from the region.