The story of Oiwa is an onryo (vengeful ghost) legend traditionally adapted to kabuki stage. It became a tradition for the principal actors and the director to make a pilgrimage to Oiwa's grave (at a temple in Tokyo) and ask her permission and blessing for their production. This is considered especially important of the actor assuming the role of Oiwa.
The ghost story featured in this film notably influenced the Ju-on: The Grudge (2002) and Ringu (1998) franchises, which popularized the concept of the onryo in mainstream horror cinema.