The theme of "The Monsters are Due on Maple Street", a teleplay by Rod Serling, is "Don't be quick to accuse someone or something because you can be jumping to wrong conclusions based on fear. On page 14, a lady says " You were so quick to kill, Charlie & you were so quick to tell us who we had to be careful of." This shows that they were acting out of fear. They thought Van Horn was an alien. Charlie shot Van Horn out of fear. In conclusion, everyone was scared on maple street.