On-call substitute doctor Shugo suddenly finds himself faced with a terrifying criminal in a clown mask. The assailant demands that Shugo treat injured high school student Hitomi. The perpetrator sets siege to the building and Shugo finds himself confined with 64 unknown patients.
| Directing | Hisashi Kimura | Director |
| Writing | Mikito Chinen | Novel |
| Writing | Mikito Chinen | Screenplay |
| Writing | Hisashi Kimura | Screenplay |