Investigating an urban legend called the "Densen Uta" -- a melody that inspires suicidal tendencies in whoever sings it -- tabloid columnist Riku (Ryuhei Matsuda) teams with Anzu (Yuko Oshima), a high schooler who recently lost a friend to suicide. When more girls start killing themselves, Riku and Anzu must act fast to end the deadly cycle in this eerie Japanese horror film, which also stars Atsuko Maeda as Anzu's unlucky classmate Kana.