This documentary-style film recreates the infamous Asama Sanso Incident of 1972 wherein an extreme faction of the Students Allied Red Army holed themselves up in a mountainous cabin in the dead of winter. By the time the police finally caught up with them, it was discovered that they had murderously turned upon themselves in a bizarre extension of their radical philosophy. This event virtually marked the end of the Student Revolution.

Shigemitsu Kamio, a member of a Shibuya color-gang who is respected even by other chīmers (delinquents), carries the bitter secret of having killed his own father. One day, his childhood friend Ei-mei Sai suddenly appears before him. Acting on orders from Wang, the boss of the Chinese mafia, Ei-mei has come to lay the groundwork for their expansion into Shibuya…

The movie is set several years after the brutal murder of author Munetuga Tokida's secretary. Tokida was subsequently cleared of the crime, but vanished soon afterward. For years after the murder, Tokida's house was left untouched because people feared it was cursed. One day, a man named Kazuo receives a mysterious email informing him of a 50,000,000 yen reward for anyone who can enter the house and find clues to unravel the mystery of the murder that occurred there...