The story is told from the first-person perspective of a working-class husband, who recalls a story told by L. T., a chatty co-worker, about the brewing trouble behind his marriage. These problems are attributed to pets purchased by L. T. and his wife. The wife purchases a dog for L. T. which dislikes him instantly and sides with his wife. Soon, L. T. purchases a cat for his wife, which immediately takes to L.T. instead. Despite the fact that the dog and the cat get along fine, L. T. and his wife continually argue. While riding home in the narrator's car, L.T. asks if his arrogance is to blame. L.T.'s wife eventually leaves him, saying she is going to her mother's house, but fails to arrive there. The narrator reveals that she has taken the dog with her, and her car was discovered abandoned on a deserted roadside in Nevada. The only thing found was her dog, axed to death. It's revealed that a serial killer is on the loose in the area, who kills women with an axe. L.T. still hopes she is alive, although this is unlikely.

Stephen King said his story is inspired by a Dear Abby editorial about how giving people pets as gifts may be viewed as arrogance in certain circles, because it assuming the receiver can—and wants to—look after the pet. King himself briefly discusses how he received a Pembroke Welsh Corgi as a present, and has enjoyed its company ever since.^[1]

• Stephen King short fiction bibliography

• L. T.'s Theory of Pets title listing at the Internet Speculative Fiction Database