The prequel to Ringu, this film explores Sadako's backstory, revealing how she became a vengeful spirit. It follows her as a shy college student who joins a drama club, impressing the director with her talent. However, her success sparks jealousy among her peers. Meanwhile, a reporter investigating Sadako's spiritualist mother uncovers something sinister about the young woman, just as a series of mysterious deaths occurs within the drama club.

Ring 0: Birthday
A successful actress, Sadako, must confront her dark past when strange visions and mysterious powers start to take control, putting her newfound fame at risk.