A young student believes that the spirit of an alien from another planet has gone back in time, taking over his body to infiltrate and study humanity in order to find the reasons why our civilization is doomed to future destruction. He replicates the spirit of another alien in a girl that he meets, and together they use their video cameras to document modern urban Japanese society.

A Tokyo psychiatrist is hoping to better his career by marrying the daughter of a prominent doctor. The match is threatened however when an attractive but very troubled tourist guide comes to him for consultation...

Nami has been creating artwork for a new video game based on images she's been seeing in her dreams. With one of the game producers, she travels out to an abandoned house that seems to match her visions. As they explore the old mansion, Nami begins to have more visions of a forgotten childhood, until at last she comes across a photo of twin infants, labelled "Nami" and "Naomi". As Nami and the producer go from room to room, an unseen person seems to be watching them from a hidden room.