Katasumi (片隅; In a Corner) and 4444444444 (Ten Fours) are two 1998 short Japanese horror films both directed by Takashi Shimizu, forerunners to the Ju-On franchise.

4444444444 opens with a young man (revealed to be named Tsuyoshi Murakami in the first Ju-on film) riding his bicycle home.

As he rounds a corner in front of an apparently abandoned house, he begins to hear a cell phone ringing, though he cannot see it.

Tsuyoshi looks startled, and the camera lingers on Toshio for a moment before zooming in quickly while he opens his mouth in a cat-like scream as a black tar-like substance drips from it.

After being edited together, the collection of four shorts (one of which was helmed by Kurosawa) was titled Gakkô no kaidan G, which roughly translates to School Ghost Story G ("G" supposedly standing for "Great").

It was first broadcast on Kansai TV on September 27, 1998, and ran for around 70 minutes, meaning that Shimizu contributed to just under 10 percent of the finished product.

[1] Katasumi, in particular, is notable for marking the first appearance of actress Takako Fuji (at this point anonymous) as Kayako Saeki, a role that she would reprise for every Ju-on production thereafter, up to The Grudge 2.