The Ring

The Ring, based on Koji Suzuki's novel Ringu, is a Japanese horror franchise centered on a cursed videotape that kills its viewers seven days after watching unless they pass the curse on, embodied by the iconic long-haired ghost Sadako, called Samara in the American remake. Its defining image spawned sequels, remakes, and spin-offs across both Japanese and Hollywood horror. The Ring hentai tag is a small horror-parody niche built around its ghostly antagonist.