Aka：Sadako DX / Проклятье: Разгадка / 貞子DX / Átok: A megoldás / 贞子DX / Σάντακο DX / O Chamado 4: Samara Ressurge / Sadako DX: Thao Túng / El aro 4 / 사다코 디엑스
Summary：People who watch a cursed video suddenly die. These deaths take place all over Japan. Ayaka Ichijo is an extremely smart graduate student with an IQ of 200. Her younger sister happens to watch the cursed video for fun.
