Nombre original: 仮面病棟
Fecha de estreno: 6 de marzo de 2020
Película
Tiempo promedio: 114 minutos
Géneros: Crimen, Thriller
Sinopsis: 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.