HELLO, MONSTER!

Parents always tell their children to go play with other children on the playground. When the mother in Hello, Monster! tells her so n to join another boy in the sandbox while he is happily playing by himself, he rebels. His mother never talks to strangers, and wha t if the other boy is a monster disguised as a child that will trap him in his underground kingdom with all the other children who c ook his meals and look after his pet moles?