It is based on the popular card game The Werewolves of Millers Hollow, and incorporates psychological and Boys' Love themes.

[2] Taiga Kishimoto (Motohiro Ōta) is a high school student who is abducted on his way home and wakes up in an unknown place.

In the same way, the microchip also causes the participants who carry the role of werewolf to attack the villagers at midnight, making them lose all sense of humanity, like a beast.

Niina, however, has lost the will to live long ago and even reveals to Taiga that he tried to commit suicide in the past, so he should be the one to die in punishment for having wished death.

The film was directed by French director Guillaume Tauveron and is composed mostly of rookie actors, with the exception of Motohiro Ōta, Kōsuke Yonehara, Masanari Wada and Hiromi Sakimoto, who had already worked on previous projects before.