The theme of the story, "The Monsters are Due on Maple Street" is to be more kind and careful about what you accuse someone of. As you can see in this story chaos arises after the character accuse their neighbors of being aliens without any evidence whatsoever. Therefore, the story teaches readers to not accuse people without any evidence and instead solve the problem.
It's a late summer in Maple street, a normal sunny day. Two women gossip on their lawn, and children wait to purchase ice cream.
As the late afternoon comes, the neighborhood notices that all of the power was off. Their cars, lights, and appliances wouldn't work. The neighbors started to make accusations with no evidence, blaming some of their own neighbors.
Things get out of hand and a man named Charlie shoots Pete Van Horn who went to go look for help.
Charlie's lights turn on and everyone accuses him of being an alien. They start to throw rocks at the window. As the glass falls it hits him and he ends up getting cut.
After the mob crowds around Charlie's porch, he then says that a boy is the alien because he is the one who knew everything about them. After everyone is in a mad run and chaos comes to Maple street.
Finally two figures appear saying, "Well you take away some of their machines and they destroy each other" "We shall go to every street on this planet just to watch and let them destroy each other.