Pulse (2001) Horror Movie Poster

Pulse (2001)

Released: February 3, 2001
Runtime: 119 min
Not Rated
Japan
Japanese

A young man stops coming to work. When his friend visits, she finds him hanged, and his computer playing a strange, looping image. Soon, ghosts are reaching out through the internet, and people across Tokyo are simply disappearing. Pulse, or Kairo, is one of the most haunting films of the J-horror wave. Written and directed by Kiyoshi Kurosawa, who also made Cure, it was made when the internet was still new and strange. Its real subject is loneliness: a world where people are connected by technology but more alone than ever. It premiered at Cannes in 2001 and was remade in Hollywood in 2006. Fans still ask what the forbidden rooms are, what happens to the people who vanish, and what the bleak ending means.

7.8/10

Horror Jungle Rating

IMDb
IMDb

6.6/10

IMDb Rating

Rotten TomatoesRotten Tomatoes

76%

Rotten Tomatoes

QUICK HORROR SNAPSHOT

Creepiness & Uncanny
10/10
Monster / Killer Threat
7/10
Atmosphere & Dread
10/10
Re-watch Value
7/10
Gore & Violence
3/10
Jump Scares
4/10
Psychological Terror
9/10
Overall Scare Factor
8/10
Tension & Suspense
7/10

Official Trailer

Where to watch

Updated November 12, 2026

AMC+
AMC+AU · CA · US
Available
Apple TV
Apple TVCA · UK · US
Rent/Buy
Amazon Prime Video
Amazon Prime VideoUK · US
Rent/Buy
Shudder
ShudderAU · UK
Available

SHOULD YOU WATCH IT?

Worth Watching?One of the eeriest Japanese horror films ever, for patient viewers.
Yes
Watch Alone?Its loneliness and dread linger.
Maybe
Watch in the Dark?The shadowy rooms and ghosts need darkness.
Yes
Good for Date Night?Slow and bleak, best for horror fans.
Maybe
Watch With Parents?Little sex or swearing, though suicide is shown.
Yes
Beginner Friendly?Little gore, but very slow and unsettling.
Maybe
Family Friendly?Suicides and disturbing ghost imagery.
No
Slow Burn?Very slow, building dread rather than shocks.
Yes
Headphones Recommended?The distorted voices and quiet sound design are key.
Yes
18+
Age RecommendationContains strong horror content, violence, and disturbing themes.
16+

Spoiler Free Review

Michi (Kumiko Asō) works at a plant shop in Tokyo. When her coworker Taguchi stops answering his phone, she goes to his flat and finds something terrible. Meanwhile, student Ryosuke (Haruhiko Kato) connects to the internet for the first time and sees disturbing images of lonely people in dark rooms.

Kurosawa's style is slow, quiet and grey. Long, still shots of empty rooms and abandoned streets create a feeling of dread that never lets up. When the ghosts appear, they move strangely and slowly, and they are some of the creepiest in film.

The film is less about scares than about mood. It becomes almost apocalyptic, as more and more people simply fade away, leaving black stains on the walls.

It is slow, and its story can be hard to follow. But Pulse is a uniquely haunting experience, one that stays with you long after it ends.

What Works

Unforgettable, deeply creepy ghost imagery.
A powerful, original theme about loneliness and technology.
A thick, apocalyptic atmosphere.
Long, quiet scenes that build dread.

What Doesn't Work

Very slow pacing.
The story is fragmented and sometimes confusing.
The early internet effects look dated.

FINAL VERDICT:

Pulse is a slow, beautiful and terrifying vision of loneliness, one of the great J-horror films. Watch it alone, at night, and then go and call a friend.

spoiler-warning

Be Careful, Spoilers Ahead

Plot Summary (Spoilers)

Michi Kudo works at a plant shop in Tokyo. When her coworker Taguchi goes missing, she visits his apartment and finds him there, distracted, before he hangs himself while she is in the next room. A disk from his computer shows a strange, looping image of him staring at a screen, with a ghostly face on another monitor.

Her friends start to change. Yabe finds a black stain on the wall where Taguchi died, and enters a room sealed with red tape, where he meets a ghost. He later warns Michi about these "forbidden rooms". Michi's coworker Junko enters one, becomes catatonic and then dissolves into a black stain.

Separately, university student Ryosuke Kawashima connects to the internet and sees disturbing images of lonely people in dark rooms. His classmate Harue Karasawa, a computer expert, becomes withdrawn, convinced that the ghosts trap people in eternal loneliness. She takes her own life.

As the ghosts spread, people across Tokyo vanish, leaving only black stains, and the city empties. Planes crash, and the streets are deserted. Michi and Ryosuke meet and try to escape together. They board a ship headed for South America, and learn from the captain that the same thing is happening around the world. Ryosuke fades into a stain on the ship's wall, and Michi is left alone, with only the captain beside her.

Ending Explained

What are the forbidden rooms? Rooms sealed with red tape, where ghosts can enter the world. Anyone who goes inside meets a ghost and begins to fade away.

Why are the ghosts coming? The film suggests the afterlife has become full, and the dead are spilling back into the world through technology, which connects everyone.

What happens to the people who vanish? They fade into black stains, trapped forever in loneliness.

What does the ending mean? Michi survives, but almost everyone she knows is gone. The world is ending, not with violence, but with people quietly disappearing.

What is the film really about? Loneliness. The internet promises connection, but the film fears it will leave everyone more alone than ever.

Hidden Meaning & Symbolism

  • Loneliness: The ghosts' power is isolation, and their victims want to disappear.

  • Technology: The internet connects people without bringing them closer.

  • Red tape: Sealing a room cannot keep the problem out.

  • Black stains: All that remains of a person is a shadow on a wall.

Scariest Moments

1

Taguchi's Apartment: Michi turns away for a moment, and Taguchi is gone.

2

The Forbidden Room: Yabe meets a ghost that walks towards him with a slow, broken stride.

3

The Library Shelves: Harue sees a figure appear behind the shelves.

4

The Jump: A woman climbs a tower and falls in a single, unbroken shot.

5

The Empty City: Tokyo's streets are deserted as people vanish.

Parents Guide / Trigger Warnings

Suicide / Self Harm

Severe

Several characters take their own lives.

Jump Scares

Mild

Few jump scares.

Flashing Lights

Mild

Computer screens and flickering lights.

Graphic Gore

Mild

Very little blood.

Substance Abuse

None

No drug use.

Animal Death

None

No animal deaths.

Child Death / Peril

None

No children are in danger.

Nudity

None

No nudity.

Sexual Content

None

No sexual content.

Trigger Warning Notes:

Contains several suicides, deep themes of loneliness and depression, and an apocalyptic ending.

Trivia

  • It premiered in the Un Certain Regard section at the 2001 Cannes Film Festival.

  • Its original Japanese title, Kairo, means "circuit".

  • An American remake, Pulse (2006), was released to poor reviews.

  • A second remake was announced in 2026 by Screen Gems and Spyglass Media Group.

  • Director Kiyoshi Kurosawa also made the acclaimed thriller Cure (1997).

FAQS (Frequently Asked Questions)

What are the forbidden rooms in Pulse?

Rooms sealed with red tape, where ghosts enter the world. Anyone who goes inside begins to disappear.

What does the ending of Pulse mean?

The world is emptying as people vanish into loneliness. Michi survives, but almost everyone else is gone.

What happens to the people who disappear in Pulse?

They fade into black stains on the walls, trapped forever in loneliness.

Is Pulse (2001) the same as Pulse (2006)?

No. The 2006 film is an American remake of Kiyoshi Kurosawa's original.

What does Kairo mean?

It means "circuit" in Japanese.

Is Pulse scary?

Not in a jumpy way, but it is deeply eerie and many viewers find it terrifying.

Who directed Pulse?

Kiyoshi Kurosawa, who also made Cure (1997).

Where can I watch Pulse (2001)?

It streams on AMC+ in the US, Canada and Australia, and Shudder in the UK and Australia. It is not streaming in India.

Movie Information

Original Title

回路

Release Date

February 3, 2001

Runtime

119 min

Country

Japan

Language

Japanese

Status

Released

Director

Kiyoshi Kurosawa

Writer

Kiyoshi Kurosawa

Main Cast

Kumiko Asō, Haruhiko Kato, Koyuki, Kurume Arisaka, Masatoshi Matsuo, Koji Yakusho, Kenji Mizuhashi

Production Company

Daiei Film

Distributor

Toho

IMDb Page

View on IMDb

Also Known As

Kairo