In a disturbing journey into the darkness of the human mind, we follow a detective named Takabe, who is assigned to a strange case of serial killers leaving a trail of lifeless victims, all bearing a particular pattern: a circular mark on their necks. As he investigates, Takabe confronts an enigmatic prisoner named Mamiya, a man who seems to possess the ability to manipulate the minds of those around him.
As the plot unfolds, the line between good and evil blurs. Through a series of unsettling interviews, Takabe is drawn into a whirlwind of terrifying events that challenge his sanity. Mamiya, with his charismatic yet dark personality, reveals secrets about human nature that could alter the way the detective perceives crime and guilt. The atmosphere of tension intensifies as it becomes apparent that Mamiya may not be the monster everyone believes, but rather a distorted reflection of the darkness that also resides in Takabe.
Trapped in his own web of desperation and obsession, the detective must confront the demons that haunt both his mind and Mamiya's. This unsettling work is a profound exploration of human psychology, loss, and vulnerability, where the boundaries between victim and executioner break down in a crescendo of psychological horror that leaves the viewer questioning who truly holds the power.