![Möbius](https://image.tmdb.org/t/p/w185/8OA7xqy0mvq62DYVloqnRvmUkmM.jpg)
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.