What are the main themes of Pulse?

The summary picks out 3 themes: Isolation, Technology and Survival.

Pulse (2006) was directed by Jim Sonzero and runs 1 hour 30 minutes.

Pulse (2006) Plot Summary & Timeline | What's After the Movie

Q: Who are the main characters in Pulse?

The story follows Mattie (Kristen Bell) (played by Kristen Bell), Isabelle Fuentes (Christina Milian) (played by Christina Milian), Douglas Ziegler and Dexter; the character guide covers 5 characters in all.

No spoilers

What Is Pulse About?

The premise of Pulse in 311 words, with nothing given away. The full story follows below.

In a near‑future campus where the hum of Wi‑Fi is as constant as the wind, a group of college friends stumble upon a breakthrough wireless signal that promises to reshape communication forever. What begins as an exhilarating experiment quickly hints at something far more unsettling, as the very fabric of reality seems to fray whenever the signal is active. The story unfolds against a backdrop of sleek labs, dim dormitory corridors, and a city whose neon glow feels both inviting and ominous.

Mattie, a resourceful and determined student, is the heart of the ensemble, driven by curiosity and a fierce loyalty to her friends. When she discovers that Douglas Ziegler, the brilliant but reclusive programmer behind the signal, has been pulling long hours in isolation, she feels compelled to uncover the truth behind his mysterious work. Alongside Isabelle Fuentes, whose upbeat energy masks a deeper sensitivity, the team forms a tightly knit circle bound by shared ambition and a growing sense of responsibility.

As the signal’s influence spreads, the friends realize they are dealing with a force that feeds on the very human desire to connect, turning ordinary technology into something almost sentient. To confront this emergent threat, they enlist the help of Dexter, the original owner of the hardware whose expertise proves indispensable, and Josh, a pragmatic coder whose inventions could hold the key to halting the cascade. Their collaboration is a study in contrasting personalities—optimism and skepticism, daring and caution—each adding a unique layer to the unfolding tension.

The film maintains a relentless, pulse‑pounding rhythm, blending sleek sci‑fi aesthetics with unsettling horror undertones. Shadows lengthen as the signal’s reach expands, turning familiar spaces into uncanny arenas of quiet dread. Against this looming digital specter, the friends’ bond becomes both their greatest strength and their most precarious gamble, setting the stage for a desperate race against an invisible, ever‑encroaching menace.

Full plot

What Happens in Pulse?

The complete story of Pulse, from the first scene to the last, in 573 words (about 2 minutes). Spoilers throughout. Names in the text link to 2 cast member pages.

Spoilers ahead

Mattie, portrayed by Kristen Bell, visits her friend Douglas Ziegler, played by Kel O’Neill, who has been strangely unreachable for a week. Upon entering his apartment, Mattie is shocked when Douglas behaves erratically and ultimately takes his own life before her eyes. Soon after, she uncovers that Douglas was working on a groundbreaking wireless signal that inadvertently unleashed a dark force capable of eroding the will to live, triggering a horrifying epidemic of suicides which only amplifies its power with each life lost.

As Mattie investigates further, she discovers a myriad of viruses appearing on Douglas’s computer, culminating in a chilling message that reads, “Do you want to see a ghost?” Upon accessing that ominous webpage, she realizes that both she and her surroundings are mirrored on the screen. This revelation sends chills down Mattie’s spine as she encounters strange net creatures—greenish-grey figures grotesquely dubbed as “ghosts.” The situation escalates as more people fall victim to the website’s allure, leading to devastating consequences where individuals turn into mere dust after watching.

The campus becomes eerily desolate; Mattie especially feels the absence of her friend Isabelle Fuentes, played by Christina Milian, who becomes one of the victims during a harrowing encounter with the ghostly beings. In her quest for answers, Mattie links Douglas’s second-hand computer back to its original owner, Dexter, depicted by Ian Somerhalder. Initially reluctant, Dexter soon acknowledges the creeping terror and agrees to join Mattie in combating the malevolent force.

Together, they hatch a desperate plan to deploy a virus developed by Josh, played by Jonathan Tucker, aiming to collapse the destructive network and preserve the human way of life. Yet, Josh, in an act of fear, isolates himself within his apartment, employing red tape as a measure of protection. Despite his frantic state, he eventually reveals the project he and Douglas were working on—a network connection meant to stretch far and wide. As paranoia and despair mount, they find themselves in a race against time as Dawg’s spirits invade, leading to Josh’s ultimate downfall when the cyber-creatures penetrate his defenses.

Armed with the coveted virus, Mattie and Dexter venture deep into Douglas’s building, ready to upload the program to a central modem located in the basement. As they navigate their way, they face off against a grotesque array of cyber-creatures. During the struggle, Mattie is momentarily ensnared, her resolve extinguished by the ghostly creatures. Just in time, Dexter pulls her back, reminding her to avert her gaze from the creature’s face. Upon finally locating the main server, they inject the virus, only to witness the system reboot, reigniting the connection to the outside world.

In what feels like a hollow victory, they flee the desolate city in a car, witnessing the once-bustling streets now eerily deserted, as all forms of communication and technology succumb to the invasive force. The only surviving message is a military radio broadcast instructing them to find refuge away from the city. After a grim night spent in their vehicle, they fend off one last assault from a four-armed creature before escaping to the countryside.

Ultimately, Mattie realizes that the life they once knew has vanished, forcing humanity to revert to a primitive existence, free of technological comforts. The film concludes with a haunting reflection from Mattie, who understands the grim fate of civilization: both ghostly figures and human survivors are locked in a struggle for existence in a world where modernity has been entirely consumed.

Timeline

Pulse Timeline: Every Key Event in Order

15 key events in the order they happen, from “Mattie Visits Douglas” to “A Grim Realization”. 9 events name a place, across 6 locations.

1

Mattie Visits Douglas

Mattie, portrayed by Kristen Bell, decides to visit her friend Douglas Ziegler after he has been unreachable for a week. Upon entering his apartment, she notices his odd behavior, which raises her concern about his mental well-being.

Where:Douglas's Apartment
2

Douglas's Tragic Act

During Mattie's visit, Douglas exhibits increasingly erratic behavior, culminating in a heartbreaking moment where he takes his own life in front of her. This traumatic event deeply affects Mattie and sets off a chain of events that will change her life forever.

Where:Douglas's Apartment
3

Discovery of the Dark Signal

In the aftermath of Douglas's death, Mattie begins to investigate his work, uncovering that he had been developing a wireless signal that unleashed a terrifying dark force. This force has begun to affect others, leading to a rising epidemic of suicides.
4

Chilling Message Found

While searching through Douglas's computer, Mattie discovers a series of ominous viruses culminating in a message asking her, 'Do you want to see a ghost?' This moment marks her first encounter with the supernatural elements at play.

Where:Douglas's Apartment
5

Encountering the Ghosts

After accessing the mysterious webpage, Mattie sees both herself and her surroundings mirrored on the screen, along with ghostly figures. This revelation becomes a horrifying introduction to the net creatures that are now hunting humans.
6

Isabelle Becomes a Victim

As the ghostly invasions escalate, Mattie feels the personal loss of her friend Isabelle, who falls victim during a chilling encounter with the creatures. This loss intensifies Mattie's resolve to understand and combat the unfolding horror.
7

Teaming Up with Dexter

Mattie traces the computer back to its original owner, Dexter, who is initially hesitant to engage but soon acknowledges the danger they face. Their partnership forms a crucial alliance as they seek to confront the terrifying force together.
8

Josh's Revelation

While dealing with the growing crisis, Josh discloses the project he and Douglas were working on; a communication network that connects people but also is the source of their torment. His fear leads him to isolate himself, illustrating the overwhelming paranoia gripping them.

Where:Josh's Apartment
9

Developing a Countermeasure

In their fight against the cyber-creatures, Mattie and Dexter devise a plan to deploy a virus created by Josh to collapse the network. Their urgency mounts as they face the disintegration of their world around them.
10

Infiltrating Douglas's Building

Mattie and Dexter venture into the now-sinister environment of Douglas's building to execute their plan. As they make their way to the basement, they encounter a host of horrifying cyber-creatures determined to stop them.

Where:Douglas's Building

Show the other 5 events of Pulse

11

The Last Struggle

During a tense moment inside the building, Mattie is nearly consumed by the ghostly predators but is rescued at the last moment by Dexter. This moment bolsters their resolve, reiterating the importance of their mission.

Where:Douglas's Building
12

Uploading the Virus

After navigating through the dangers, Mattie and Dexter successfully reach the central modem in the basement. They inject the virus into the system, leading to a tense reboot that threatens to release the dark powers once more.

Where:Douglas's Building Basement
13

Escaping the City

With the connection to the outside world reignited, Mattie and Dexter flee the now-desolate city, witnessing the ghostly transformations of their environment. A military radio broadcast warns them to find refuge, indicating the broader collapse of civilization.

Where:Desolate City
14

Final Confrontation

As they spend a grim night in their vehicle, they face one last assault from a terrifying four-armed creature. This encounter tests their survival instincts as they fight to escape the violent remnants of their former lives.

Where:Countryside
15

A Grim Realization

Ultimately, Mattie reflects on the vast changes to their existence, recognizing that humanity has been thrown back into a primitive state. The struggle continues as survivors and the ethereal beings are locked in a new battle for existence.

Characters

Who Are the Main Characters in Pulse?

5 characters, among them Mattie (Kristen Bell), Isabelle Fuentes (Christina Milian) and Douglas Ziegler: who each one is and the part they play in the story. 2 of them link to the actor’s page.

Mattie (Kristen Bell)

Played by Kristen Bell

Mattie is a determined and resourceful character who finds herself at the center of an unfolding nightmare. Her journey from a concerned friend to a courageous survivor highlights her resilience in the face of overwhelming horror. Mattie’s evolution throughout the film depicts her growth as she confronts both her fears and the looming threat of the ghostly force.
- 👩‍💻 Protagonist
- 🔍 Investigator
Isabelle Fuentes (Christina Milian)

Played by Christina Milian

Isabelle Fuentes is portrayed as a close friend of Mattie, whose fate becomes a pivotal point in the narrative. Her tragic demise embodies the personal losses suffered due to the dark force at play, contributing to the movie's grim atmosphere. Isabelle’s role emphasizes the high stakes of the situation and the emotional toll it takes on those affected by the technological epidemic.
- 💔 Victim
- 👩‍❤️‍👩 Friendship
DZ
Douglas Ziegler

Douglas Ziegler is key to the story, as his groundbreaking work on a wireless signal inadvertently triggers the horror that ensues. His erratic behavior and ultimate decision set off a chain reaction that impacts all characters involved. Douglas represents the dangers of unchecked technological innovation and the personal consequences it holds for those who engage with it.
- 🧑‍💻 Innovator
- 🔥 Catalyst
D
Dexter

Initially reluctant, Dexter becomes an essential ally to Mattie as they confront the creeping terror unleashed by Douglas's work. His character adds a layer of complexity, showcasing how fear can lead to isolation, yet also how collaboration is crucial in overcoming adversity. Dexter exhibits courage as he joins Mattie in a desperate race against time.
- 👨‍💻 Collaborator
- 💪 Courage
J
Josh

Josh represents the struggle between fear and responsibility, isolating himself as a means of self-protection while grappling with the despair brought on by the cyber-creatures. His character illustrates the psychological toll of the crisis and the weight of guilt he carries, balancing his knowledge of the situation with his fear of facing it.
- ⚠️ Caution
- 😨 Fear

Setting

Where and When Is Pulse Set?

Pulse is set in Douglas's Apartment, Campus and Countryside. Here is why the place matters to the story.

When

The events in *Pulse* unfold in a contemporary setting, exploring themes of modern technology and its dark consequences. The rise of a terrifying online presence reflects the anxieties of the digital age, where connectivity brings not only convenience but also peril. The film captures a moment when society's reliance on technology leads to catastrophic outcomes.

Where

Douglas's Apartment, Campus, Countryside

The main locations in *Pulse* include Douglas's apartment, which becomes a site of horror after the tragic events unfold. The campus serves as a backdrop to the escalating epidemic and Mattie's investigation. The countryside represents a fleeting escape from the chaos, offering a short-lived sense of safety amidst the chaos brought on by the invasive force.

🏙️ City
🏞️ Countryside

Themes

What Are the Themes of Pulse?

3 ideas the story keeps returning to, among them Isolation, Technology and Survival.

01

Isolation

Isolation emerges as a central theme in *Pulse*, highlighting how technology can disconnect individuals in profound ways. Despite being more connected than ever, characters are ultimately left alone to grapple with their fears and the consequences of their actions. This theme resonates deeply as the characters face both literal and metaphorical isolation from their previous lives and the world around them.
02

Technology

The film critically examines the role of technology, showcasing how it can become a double-edged sword. In *Pulse*, technology is both a tool for connection and a means for a dark force to encroach upon human existence. The growing dependence on digital devices is portrayed as a potential pathway to disaster, urging viewers to ponder the implications of their own technological reliance.
03

Survival

Survival is a critical theme depicted in Mattie and Dexter's desperate attempts to combat the malevolent force threatening humanity. As they navigate the horror of their situation, the film reflects on the lengths individuals will go to protect themselves and those they care about. The struggle for survival underscores the fragility of life in a world where unseen threats lurk within everyday technologies.

Tone & mood

What Kind of Film Is Pulse?

Bleak in tone, with fast pacing and a moderate story, going by the plot summary.

Tone: Bleak
Pacing: Fast
Story: Moderate
Intensity: High
Ending: Bleak

A relentlessly tense and bleak horror film that traps its characters in a desperate race against time as a malevolent digital force consumes the world, fostering paranoia and despair in a chillingly empty landscape.

paranoid
oppressive
desolate
anxious
unsettling
hopeless
technological horror
survival
apocalypse
psychological despair

Content notes: suicide, mass suicide, self harm, apocalyptic themes, psychological horror.

Quiz

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Where to watch

Where to Watch Pulse

Stream it on Amazon MX Player and Amazon Prime Video, or rent or buy it from Amazon Video and Apple TV Store. US availability and prices from JustWatch.