A police officer arrives at 1241 Glenwood Avenue, the residence of James Albert Garretson, who has disappeared. The House AI is initially unco-operative, and when the full force of the law is threatened, grudgingly provides as little information as possible.
The story follows the conversation between the two, as the policeman puts together a picture as to what has happened through speaking to the AI, and from observations of the house, and the application of good old-fashioned sleuthing. It transpires that the relationship between master and AI has been quite an intimate one, and when a third party joined the equation something had to give. And in a neat twist, the policeman finds the tables turned on him.