A seductive woman gets kidnapped into prostitution. After getting a spider tattoo made on her back, she grows vengeful, leaving several men in her path.

Shinsuke and Otsuya, his boss' daughter runs away to get married, but they are betrayed by the inn owner, Kenji. Otsuya is sold to Tokubei's brothel. Seikichi, a mysterious tattoo artist puts his masterpiece, a human-faced spider, on her back. She and her lover are then forced into a conspiracy-born nightmare, where they face the danger of becoming the very evil they seek to escape. With each new bloody incident, the spider's face seems to redden with ever-growing hunger.—Letter B.