I know Halloween is now over but but I remembered this creepy nursery rhyme from Doctor Who
"Whats that in the mirror? In the corner of your eye? Whats that footstep following? But never passing by? Perhaps the lot is waiting, Perhaps when we're all dead. Out they'll come a slithering, From underneath your bed."
It is one of my favorite TV shows and NHK sometimes shows episodes with Japanese subtitles. It's good fun and not too serious.