The plot involves an aspiring hair dresser (Kuriyama) who becomes the infatuation of a tricophilic man who sells hair extensions to nearby hair salons. The source of the hair comes from the stolen corpse of a girl whose dead body continues to grow beautiful and voluminous black hair that comes alive, driving those who use the extensions insane or killing them.
What if extensions carried the grudge of the individual to which the hair originally belonged and started attacking people wearing it at random? Customs agents discover a huge amount of human hair used as materials for 'hair extensions' along with the dead body of a young girl with a shaved head. With the corpse being soon transported by the police, the results of the autopsy determine that the woman's internal organs have been harvested. The possibility is pointed out that she was kidnapped in some foreign country and was a victim of black market human organ racketeering ring. A sinister, fearless smirk comes over Yamazaki (Ren Osugi), the morgue night watchman.
Yuko (Chiaki Kuriyama) is a young wannabe hair stylist apprenticing at the Gilles de Rais hair salon. After working late each day, after returning home, she tirelessly practices her skills on head mannequins with wigs. One day, her sister, Kiyomi, forcibly entrusts her eight-year-old daughter, Mami, to Yuko. For some reason, Mami is abnormally timid and frightened and has several wounds on her body from abuse. Meanwhile, Yamazaki cuddles up with the corpse of the girl he stole from the morgue which now occupies his room. Hair has become to grow from her head once again, not only from her head but from where her organs were removed: the scars of her stomach and even her empty eye socket. Later, Yamazaki shows up at Yuko's salon with Mami who got lost looking for Yuko. Yamazaki takes one look at Yuko and is captivated by her lovely flowing hair.