As Guy walks back home, he meets his new neighbor, a teenage girl named Clarisse. She seems strange to Guy because she is talking to him. As they walk back home together, Clarisse asks Guy some personal questions.
Are you a fireman? For how long? You know firemen use to fight fires? Are you happy?
When Guy comes back home, he thinks about Clarisse's question and realizes that he is not so happy. Then he finds his wife, Mildred, on the bed very pale and barely breathing. She overdosed on sleeping pills. He calls the hospital and two technicians come.
The nest day at the fire station, Guy meets the Mechanical Hound, a robotic dog that can track down any animal or person that is programmed to and kill it. When Guy goes to pet it, the hound becomes aggressive and starts to chase Montag. Montag runs to the second floor to safety.