| Release Date | 10 February 2001 |
| Tagline | Yûrei ni aitai desu ka? (Do you want to meet a ghost?) |
| Genre | Horror, Thriller |
| Country | Japan |
| Language | Japanese |
| Sound Mix | Dolby |
| Color | Color |
| Film Type | Feature |
| Film Class | Psychological Thriller |
| Mood | Spellbinders |
| Themes | Ghosts, Computer Paranoia |
| Tones | Chilly, Disturbing, Eerie, Austere, Enigmatic, Cerebral, Stylized, Ominous |
| Tags | Afterlife, Computer Disk (CD), Computers, Culture [social Culture], Death, Ghost, High Tech, Internet, Mystery [unexplained Phenomenon], Suicide, Technology |
Kairo or "Circuit") is a 2001 Japanese horror film directed by Kiyoshi Kurosawa. The film was based on his novel of the same name, and was released in the US in 2005 as Pulse. The movie is the subject of a 2006 English language remake, also titled Pulse. The movie has a cult following.