Get a spoiler-free look at Sleepwalker (2017) with a clear plot overview that covers the setting, main characters, and story premise—without revealing key twists or the ending. Perfect for deciding if this film is your next watch.
In the wake of a personal tragedy, Sarah Foster finds herself unable to sleep, the night stretching into a relentless void that blurs the line between wakefulness and dream. Desperate for relief, she turns to a specialized sleep clinic, a sterile sanctuary where science and the subconscious intersect. The clinic’s quiet corridors promise answers, but they also whisper of a deeper unease, hinting that the very act of sleeping might pull her into a world where the familiar becomes unsettlingly foreign.
The clinic’s team—led by the composed Dr. Cooper and supported by the methodical Dr. Koslov and the introspective Dr. White—begins to monitor Sarah’s brainwaves, seeking patterns in her fragmented nights. As she settles into a routine of observation, subtle dissonances emerge: names on paperwork shift, a roommate’s presence feels off, and her sense of self flickers like a candle in a draft. The mundane details of daily life start to feel like clues in a puzzle she never asked to solve, and the gentle hum of laboratory equipment becomes a soundtrack to her growing disorientation.
The film unfolds as a psychological thriller that balances clinical precision with atmospheric dread. Every hallway, every whispered conversation, and every fleeting glimpse of a dreamscape is rendered with a muted palette that amplifies the feeling of being caught between two realities. Dawn, Sarah’s roommate, adds a layer of ordinary intimacy that is constantly threatened by the strange, shifting world around them. As Sarah navigates the thin line between treatment and turmoil, the audience is invited to experience the same fragile tension—questioning what is real, what is imagined, and how fragile the mind can be when the night refuses to end.
Last Updated: October 05, 2025 at 16:53
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.
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.
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.
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