Peter meets a girl named Ottavia who is the leader of a bad group known for drinking, drugs, and vandalism. Peter's wise mother warns him against Ottavia, but he doesn't listen and begins emulating her bad behaviors. Over time, Peter meets a new classmate named Sally who is kind and smart, and he falls for her goodness. Peter leaves Ottavia for Sally and the two marry, living happily together. The story's message is that good will ultimately overcome evil.