Chiaki Kuriyama is an assistant hairstylist at a small town salon, charmingly named after multiple murderer Gilles de Rais. Her sister is a beer disposal unit who dumps her daughter on her doorstep and stumbles off into the night. A morgue janitor obsessed with hair steals a female corpse from his workplace fridge that won't stop growing long, looping strands of thick black hair. He trims the dead locks and sells them as extensions, which go nuts and start to kill the women who wear them.