Dementia 13

Dementia 13

Year: 2017

Runtime: 83 min

Language: English

Director: Richard LeMay

Echo Score: 55
Horror

A wealthy patriarch’s will stipulates that his relatives must convene at a secluded estate. As they gather, unsettling secrets and long-held resentments surface, escalating tensions within the family. Soon, a masked killer begins targeting them one by one, creating an atmosphere of fear and suspicion. The survivors must uncover the killer's identity before they become the next victims in this chilling game of terror.

Dementia 13 (2017) – Spoiler-Free Movie Summary & Plot Overview

Get a spoiler-free look at Dementia 13 (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 remote, wind‑scarred hills of Ireland, a reclusive estate becomes the inevitable gathering place after a powerful patriarch’s final wish is read. His will, a maze of conditions and cryptic stipulations, forces his scattered relatives to converge under one roof, each hoping to secure a slice of the family fortune while confronting the lingering shadow of the man who built it. The isolated manor, with its dim corridors and looming stone walls, immediately sets a tone of uneasy grandeur, where every cracked portrait and echoing footstep hints at stories best left unspoken.

The family’s uneasy reunion is anchored by Louise, the young widow whose sharp mind conceals a fierce determination to navigate the tangled inheritance. She is joined by the brothers Billy and Richard, whose sibling rivalry and unresolved grief quietly simmer beneath polite conversation, and their mother, Lady Haloran, a matriarch whose lingering sorrow over a long‑ago tragedy colors every interaction. Adding an outsider’s perspective, Dr. Justin Caleb arrives to tend to the household’s health, bringing a rational, clinical eye to a setting that feels increasingly irrational. These characters, bound by blood and burdened by history, begin to probe the estate’s secrets, each carrying personal motives that clash as much as they complement one another.

As the night deepens, the atmosphere thickens with a palpable sense of dread. Whispers drift through the corridors, and the oppressive silence is broken only by the occasional creak of the old house settling. Somewhere within the manor’s shadows, a masked presence moves, its intentions unknown and its arrival hinting at a deadly game of cat‑and‑mouse. The family’s fragile veneer of civility starts to crumble, replaced by suspicion and fear, setting the stage for a chilling contest of wits where uncovering hidden truths may be the only path to survival.

Last Updated: August 10, 2025 at 03:02

Mobile App Preview

Coming soon on iOS and Android

The Plot Explained Mobile App

From blockbusters to hidden gems — dive into movie stories anytime, anywhere. Save your favorites, discover plots faster, and never miss a twist again.

Sign up to be the first to know when we launch. Your email stays private — always.

Explore Movie Threads

Discover curated groups of movies connected by mood, themes, and story style. Browse collections built around emotion, atmosphere, and narrative focus to easily find films that match what you feel like watching right now.

Secluded Estate Slashers with Family Secrets like Dementia 13

A treacherous family gathers in an isolated mansion, hunted by a killer while dark pasts are exposed.If you enjoyed the claustrophobic terror of Dementia 13, explore more movies like it. This collection features horror stories where a wealthy family is trapped in a secluded estate, targeted by a killer, and forced to confront sinister secrets from their past. Find your next chilling watch with similar fast-paced, high-intensity slasher plots.

claustrophobicsuspensefulsinisterfearfuloppressiveinvestigativetreacherous

Narrative Summary

Stories in this thread typically begin with a family gathering under strained circumstances, often related to an inheritance or reunion. The isolation of the setting quickly becomes a trap as a killer emerges. The narrative unfolds as a tense whodunit, where the investigation into the murders is paralleled by the unraveling of the family's dark history, creating a dual mystery. The climax usually involves a final confrontation that reveals the killer's identity and motive, deeply tied to the exposed family trauma.

Why These Movies?

Movies are grouped here because they share a very specific and effective horror formula: the combination of a 'closed circle' mystery in a lavish but confining setting, the slasher genre's body count structure, and the psychological depth of a family drama corrupted by greed and secrets. This creates a cohesive experience of high tension, visceral fear, and compelling mystery.

Claustrophobic Nightmares of Greed and Trauma like Dementia 13

Characters are trapped together by circumstance, where paranoia and past trauma erupt into violence.For viewers who liked the oppressive atmosphere and psychological tension of Dementia 13, this list highlights similar movies. These films feature groups trapped in confined spaces, where external threats force deeply buried trauma and toxic relationships to the surface. Discover more horror and thriller movies with heavy emotional weight and unsettling family dynamics.

claustrophobicoppressiveunsettlingparanoidtreacherouspsychologicalfearful

Narrative Summary

The narrative pattern involves a group being physically or emotionally trapped, creating a pressure cooker environment. An initial shock or threat breaks the fragile peace, causing long-held resentments and traumatic histories to dictate the characters' actions. The plot often twists as alliances shift and it's revealed that the internal psychological conflict is as dangerous as any external monster. The journey is one of escalating dread and moral collapse within the confined space.

Why These Movies?

These films are united by their masterful use of a limited setting to generate palpable tension and focus on psychological unraveling. They share a heavy, oppressive mood where the horror is deeply personal, stemming from broken relationships and shared trauma, making the experience intensely unsettling and emotionally resonant beyond simple jump scares.

Unlock the Full Story of Dementia 13

Don't stop at just watching — explore Dementia 13 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 Dementia 13 is all about. Plus, discover what's next after the movie.

Dementia 13 Summary

Read a complete plot summary of Dementia 13, 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.

Dementia 13 Summary

Dementia 13 Timeline

Track the full timeline of Dementia 13 with every major event arranged chronologically. Perfect for decoding non-linear storytelling, flashbacks, or parallel narratives with a clear scene-by-scene breakdown.

Dementia 13 Timeline

Characters, Settings & Themes in Dementia 13

Discover the characters, locations, and core themes that shape Dementia 13. Get insights into symbolic elements, setting significance, and deeper narrative meaning — ideal for thematic analysis and movie breakdowns.

Characters, Settings & Themes in Dementia 13

More About Dementia 13

Visit What's After the Movie to explore more about Dementia 13: 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 Dementia 13

Similar Movies to Dementia 13

Discover movies like Dementia 13 that share similar genres, themes, and storytelling elements. Whether you’re drawn to the atmosphere, character arcs, or plot structure, these curated recommendations will help you explore more films you’ll love.