Emily Grierson passes away at the age of 74. People come to her funeral, some out of respect and some out of curiosity. Her father was a well-known man in town before he died, and her house is an old monument to the town.
Homer Barren comes to town with a construction company from the North. He's considered a "Yankee" and an outcast, however, everyone in town becomes aware of his presence and he becomes very well known.
Emily and Homer's courtship becomes public. The townspeople see them together on Saturdays riding in a horse-drawn carriage.
A Southerner with a Northerner? Poor Emily...
Miss Emily sees a druggist in town and asks for a potent poison. They question her intentions but eventually give it to her because of her societal detachment and relationship with Homer.
What do you need arsenic for?
After Emily's funeral, the townspeople break into a closed-off room in her house, which is furnished with wedding relics and covered in dust. They find Homer Barren's dead body.
Is that... Homer Barren?!
The townspeople notice a round indent and a grey hair on the pillow next to Homer's body. It is most likely Emily's, which tells them that Emily probably killed her husband and proceeded to sleep with him for several years afterward.