Chapter 1: The Scent of Death
* Summary: Joe and Donna Trenton, a young couple with a toddler named Tad, decide to get their dog Cujo vaccinated against rabies. They take him to Doc Hanson, the local veterinarian, who notes a strange behavior in the dog. Cujo snarls at Tad and shows aggression towards the vet, raising concerns about potential rabies infection.
* Example: "Doc Hanson gripped the syringe firmly and tried again. But a second time and a third, Cujo snarled and then snapped, forcing the vet back."
Chapter 2: The Keep
* Summary: Several weeks later, Cujo displays aggressive behavior toward the mailman and attacks a local couple at a picnic. Joe and Donna realize that their dog has rabies and take him to the vet. They leave Tad with their neighbor, Brett Camber, and go to the hospital for treatment.
* Example: "Cujo launched himself at the mailman, tearing his arm open with his fangs. The mailman screamed and ran, but Cujo gave chase."
Chapter 3: The Cage
* Summary: Cujo is quarantined at the vet's clinic, but his rabies progresses rapidly. Joe and Donna spend the night in the hospital, worried about Cujo's condition and the safety of their family. Meanwhile, Tad starts to exhibit symptoms of illness.
* Example: "Donna felt a wave of nausea as she looked at Joe. Cujo's eyes were now wild and bloodshot, and his tongue hung slack from his mouth."
Chapter 4: The Pursuit
* Summary: Brett Camber tries to take Tad to the hospital, but Cujo escapes and attacks him. Brett is severely injured, and Tad is knocked unconscious. Cujo continues to pursue Brett and his wife, Charity, who have sought refuge in their car.
* Example: "Brett felt Cujo's hot breath on his neck. He stumbled and fell, and Cujo was on him, snarling and snapping."
Chapter 5: The Showdown
* Summary: Joe and Donna learn about the attacks and rush back to Camber's house. They find Cujo guarding Tad's body and confront him. Joe is killed in the struggle, but Donna manages to kill Cujo with a baseball bat. Tad survives the rabies infection.
* Example: "Donna picked up the baseball bat and charged at Cujo. She swung with all her might, connecting with the dog's skull and sending it crashing to the ground."