Saki starts The Open Window with the arrival of Mr. Nuttel into the Sappleton house. An adorable teenager girl, whom is Mrs. Sappleton's niece, receives him with a sarcastic smile on her face, inviting Mr. Nuttlel to get in the house while her aunt did not appear. The young lady begins to investigate him to know his knowledge about the family, and she realizes that Mr. Nuttel shows not to know much about it.. Seizing the opportunity, the girl starts to tell the family story. "Her great tragedy happened just three years ago,." tThose are she words used that aroused fear and curiosity in Mr. Nuttel's face. Describing every since moment of and since that tragic day, Vera, the niece, tells that her uncle and her cousins ​​left for shooting as they always did, but unfortunately, they did not return. Since then, her aunt keeps the window opened with a strongest hope of seeing them again. With the arrival of the aunt, who apologized for the delay,