Baxter, a bull terrier, is taken from the pens and given to an old woman. Baxter hates the old woman's bland lifestyle and reacts to her habits with disgust. In contrast, he becomes obsessed with the young couple across the street as he observes their nightly lovemaking sessions. Baxter attempts to communicate his dominance over the old woman by causing her to stumble, but his plan backfires. The old woman's condition deteriorates, and ultimately Baxter kills her in order to be adopted by the young couple.