A strange phenomenon takes place. A beautiful flower blooms on a selected woman's body and that flower is called the "Shanidar". When the Shanidar is in full bloom, the flower produces a substance which is then sold at a high cost to develop new drugs. Kenji Otaki works as a researcher at the facility where the Shanidar is grown.

As police officer Agawa Daigo closes in on the truth, the Goto family, who are trying to protect the village's secret, finally cross the line and clash with the police.

Daigo throws himself into a mad battle with the Goto family. Will he be able to uncover the shocking truth that lies beyond the unstoppable vortex of madness? The key to everything lies in the past of the cursed Goto family...