Sleepwalker

Sleepwalker

Year: 2017

Runtime: 88 mins

Language: English

Director: Elliott Lester

Thriller

A young woman seeks help from a sleep clinic for her insomnia, but soon deals with her entire life being turned upside down.

Warning: spoilers below!

Haven’t seen Sleepwalker yet? This summary contains major spoilers. Bookmark the page, watch the movie, and come back for the full breakdown. If you're ready, scroll on and relive the story!

Timeline & Setting – Sleepwalker (2017)

Explore the full timeline and setting of Sleepwalker (2017). Follow every major event in chronological order and see how the environment shapes the story, characters, and dramatic tension.

Time period

Present day

Set in modern times, Sleepwalker follows a college student navigating contemporary sleep research and memory issues. The plot relies on brain-monitoring tech, diary records, and campus life to drive the mystery. The blend of clinical settings with everyday student routines situates the events in a recognizable, current era.

Location

University Campus, Sleep Clinic, Apartment, Laboratory, Strange House

Most of the story unfolds on a university campus and within a sleep research clinic. The apartment serves as a recurring site where memories surface and reality frays. The laboratory environment provides a clinical backdrop that contrasts with the eerie, dream-driven episodes in other locations.

🗺️ College Campus 🧪 Sleep Clinic 🔬 Laboratory 🏠 Apartment 🏚️ Strange House

Last Updated: October 04, 2025 at 07:53

Main Characters – Sleepwalker (2017)

Meet the key characters of Sleepwalker (2017), with detailed profiles, motivations, and roles in the plot. Understand their emotional journeys and what they reveal about the film’s deeper themes.

Sarah Foster / Sarah Wells (Anna Wells)

College student whose sleepwalking and memory fragmentation pull her between competing identities. Her reality becomes unstable as she uncovers connections to a different life and past events surrounding Jonathan Grey.

🧠 Psychological 🔎 Mystery

Warren Lambert

A determined stalker who weaponizes Sarah’s sleepwalking and memories, embodying the danger of obsession and control. His actions push the protagonist toward a startling truth about herself.

🔎 Obsession 🕷️ Stalker

Dr. Scott White

Sleep-lab physician who interprets brain activity and dream data, offering guidance through the increasingly unstable reality. He emphasizes dreams as a pathway to emotional understanding.

🧠 Scientist 🔬 Medical

Dr. Elaine Cooper

Professor who recognizes memory disruption and works to ground Sarah while clarifying what’s real. She serves as a stabilizing presence amid the mind-bending events.

🎓 Academic 🧠 Psychological

Dr. Koslov

Researcher monitoring Sarah’s brain activity, central to the dream-study dynamic that blurs the line between dreaming and waking life.

🧪 Researcher 🧠 Brain science

Dawn

Sarah’s roommate and friend figure who represents normalcy and stability, later highlighting how memory and identity can be destabilized by others.

👭 Friend 🧠 Memory

Nichole

Imposter roommate who disrupts Sarah’s sense of home, underscoring how identity and reality can be manipulated from within.

🕵️ Impostor 🔍 Mystery

Officer Dowden

Police officer involved in investigating the stalking and broader mystery surrounding Sarah’s sleepwalking episodes.

👮 Authority 🕵️ Investigation

Anna Wells

The obsessive fan whose past actions are tied to the mystery; the narrative reveals a dangerous history that intersects with Sarah’s reality.

🧠 Identity 💥 Trauma

Last Updated: October 04, 2025 at 07:53

Major Themes – Sleepwalker (2017)

Explore the central themes of Sleepwalker (2017), from psychological, social, and emotional dimensions to philosophical messages. Understand what the film is really saying beneath the surface.

🧠 Identity

The protagonist’s sense of self fractures as she shifts between multiple identities—Sarah Foster, Sarah Wells, and Anna Wells. Conflicting documents, dreams, and memories challenge what she believes about who she is. The ultimate revelation ties her identity to a separate, dangerous history, forcing a confrontation with what memory really defines.

🌙 Dreams & Reality

Dream sequences and dream data increasingly steer the narrative, blurring the line between waking life and sleep. Medical interpretations of brain activity intersect with the protagonist’s evolving perceptions, making it hard to distinguish truth from illusion. The dream world becomes a battleground for emotional truth and self-understanding.

🔎 Obsession

A relentless stalker drives the tension, illustrating how fixation can erode safety and autonomy. The plot explores the dangers of fanatical devotion and how memory can be weaponized. Surveillance, manipulation, and memory intrusion reveal the destructive power of obsession.

Last Updated: October 04, 2025 at 07:53

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Psychological Thrillers with Unreliable Narrators like Sleepwalker

Stories where perception is distorted and the line between truth and delusion blurs.If you enjoyed the mind-bending reality distortion in Sleepwalker, explore these movies where the protagonist's perception is untrustworthy. These stories feature memory loss, identity crises, and a constant questioning of reality, creating a similar feeling of anxious uncertainty for the viewer.

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Narrative Summary

Narratives in this thread are built around a central character whose grip on reality is tenuous. The plot unfolds through their distorted perspective, often involving memory gaps, hallucinations, or psychological conditions that force the audience to piece together a fractured truth.

Why These Movies?

These films are grouped together because they share a core experience of cognitive dissonance. They use similar techniques to create suspense and dread not from external threats alone, but from the terrifying collapse of the protagonist's own mind, making the viewer an active participant in deciphering the puzzle.

Slow Burn Thrillers with a Claustrophobic Vibe like Sleepwalker

A steady, suffocating escalation of tension that traps you in a character's anxiety.Fans of the methodical, anxious pacing in Sleepwalker will appreciate these slow burn thrillers. These movies prioritize a steadily mounting sense of dread and a claustrophobic atmosphere over fast-paced action, creating a similar feeling of inescapable psychological tension.

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Narrative Summary

The narrative pattern involves a gradual, often inescapable, descent into a character's psychological turmoil. The conflict is internal as much as external, with tension derived from a sustained atmosphere of threat, uncertainty, and the slow unraveling of a character's sanity or safety.

Why These Movies?

They are connected by a shared approach to tension-building. Instead of jarring jump scares, they employ a steady, oppressive pacing and a focus on atmospheric dread. This creates a cohesive vibe of lingering anxiety and a profound, unsettling emotional weight.

Unlock the Full Story of Sleepwalker

Don't stop at just watching — explore Sleepwalker in full detail. From the complete plot summary and scene-by-scene timeline to character breakdowns, thematic analysis, and a deep dive into the ending — every page helps you truly understand what Sleepwalker is all about. Plus, discover what's next after the movie.

Sleepwalker Summary

Read a complete plot summary of Sleepwalker, including all key story points, character arcs, and turning points. This in-depth recap is ideal for understanding the narrative structure or reviewing what happened in the movie.

Sleepwalker Summary

Sleepwalker Timeline

Track the full timeline of Sleepwalker with every major event arranged chronologically. Perfect for decoding non-linear storytelling, flashbacks, or parallel narratives with a clear scene-by-scene breakdown.

Sleepwalker Timeline

Sleepwalker Spoiler-Free Summary

Get a quick, spoiler-free overview of Sleepwalker that covers the main plot points and key details without revealing any major twists or spoilers. Perfect for those who want to know what to expect before diving in.

Sleepwalker Spoiler-Free Summary

More About Sleepwalker

Visit What's After the Movie to explore more about Sleepwalker: box office results, cast and crew info, production details, post-credit scenes, and external links — all in one place for movie fans and researchers.

More About Sleepwalker

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