Johnny is just 5 years old but like his father tells him every night as he holds him high up in the air, he is a "big boy." Johnny adores monsters and besides the monster books lining his bookshelves, covering the walls in his bedroom atop a flight of stairs are movie posters of giant apes, fierce dinosaurs, ravenous vampires, hairy wolfman and all manner of other fiends and beasts. So, when two real monsters appear under Johnny's bed one night, he is not afraid, even after the monsters eat his favorite cat, Manx, alive. Is Johnny next?