This is an interesting and innovative film about a young student who believes that the spirit of an alien from another planet has gone back in time and taken over his body to infiltrate and study humanity, 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. While there are no great insights, there are some interesting observations about a materialistic and technology mad society that never seems to come to rest. Generally an easy film to watch, although the use of free camera movement is sometimes taken to extremes.