

The game is stated as being a major inspiration for the Resident Evil games, and is widely believed to be the prototypical survival horror game (although the term did not come into popular use until after the release of the original Resident Evil years later). The team arrives in the main chamber and confronts Mamiya in a final battle. She committed suicide shortly after and her ghost, unable to forgive herself, became trapped in the mansion. It is revealed that thirty years previously, Mamiya's two-year-old son had fallen in the house's incinerator and was burnt alive, and Mamiya attempted to provide playmates for her son by killing several other children.

The team discovers that the ghost is that of Lady Mamiya, Ichirō's wife. The team decides to split up and find a way out, but the mansion is both in danger of collapsing and is occupied by countless monsters. Upon entering, they are trapped inside by the ghost of an unknown woman, who threatens to kill all trespassers. In the present day, a team of five documentary filmers seek to recover the paintings from the abandoned, dilapidated mansion. Thirty years prior to the story, famous artist Ichirō Mamiya hid several precious frescos in his huge mansion before he mysteriously disappeared. If all five characters remain alive after the defeat of the final boss, the player will receive the best ending.

For example, should Akiko (the team's nurse) die, the team may find pill bottles which can be used to heal ailments. The five characters have a specific skill that is necessary to complete the game, although items that serve the same purpose can be found if one of the characters dies. When a character dies, a death animation depicting him or her is shown and he or she cannot be revived throughout the remainder of the game furthermore, the game will be over if all five characters die. The game features randomly encountered battles which the controlled character or party of characters must fight or run away from.
