Takashi Shimizu is the Japanese director of The Grudge horror movies. Back in 1998, he made two short horror films that were included in the TV Movie “Gakkou no Kaidan G”. The films were called “Katasumi” and “4444444444” and they featured the two ghosts (Kayako and Toshio) who he would later use in The Grudge movies.
Katasumi (In a Corner)
Two Japanese schoolgirls are taking care of some rabbits when one of them cuts her hand.
4444444444 (Ten Fours)
A young man is riding on his bike when he discovers a mobile phone outside an abandoned building.