Tsukiko, who belongs to a photography club at high school, always felt inferior to her elder sister, Tomie. Tomie is breathtakingly beautiful and popular among the male students including Toshio, who Tsukiko is secretly in love with. However one day, an awful accident kills Tomie right in front of Tsukiko. Since then, Tsukiko suffers from a nightmare night after night. A year later, Tsukiko and her parents are silently surrounding a birthday cake to celebrate dead Tomie's 18th birthday. Suddenly, they hear eerie knocks on their door. Unbelievably, it is Tomie. She's back. The father and the mother blindly welcome Tomie in tears, but Tsukiko feels instinct fear. Tomie gradually reveals her true face only when she is with Tsukiko. Now Tsukiko's nightmare becomes a reality, and the terrifying days begin...