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Demonia (1990) Plot Summary & Timeline

Demonia (1990) movie poster

Demonia is a 1990 horror film directed by Lucio Fulci, running 1 hour 25 minutes. This page retells the whole story in 951 words (about 4 minutes to read) and covers 14 key events in order, 8 characters, where and when it is set and 3 themes. Looking for the cast, ratings and where to stream it? See the movie page for Demonia.

to read the plot summary
4 min
key events in the timeline
14
characters profiled
8
themes explained
3
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Demonia (1990) movie poster
Released
Runtime
1h 25m
Director
Lucio Fulci
Genre
Horror
Original language
Italian
No spoilers

What Is Demonia About?

The premise of Demonia in 292 words, with nothing given away. The full story follows below.

In the sun‑baked shadows of Sicily’s Valley of Temples, an archaeological team claws at centuries of stone, hoping to unveil a forgotten chapter of history. The remote landscape is a maze of ancient ruins and a crumbling 16th‑century convent that looms over the dig like a silent sentinel, its walls whispered to hold dark, untold stories. The very air seems to hum with the weight of centuries, blending the bright Mediterranean light with an undercurrent of lingering dread that seeps into every trench and footstep.

The expedition is led by the methodical Professor Evans, a scholar whose commitment to rational inquiry is matched only by his respect for the terrain’s fragile past. By his side is his former student, Liza Harris, a woman drawn to the valley by an inexplicable, almost magnetic bond. Since a seance in Toronto, Liza has been haunted by vivid nightmares that echo the convent’s grim legend, pulling her toward the site with a mixture of scholarly curiosity and personal obsession. Their partnership is a study in contrast: Evans’ steady, scientific demeanor versus Liza’s intuitive, almost mystical drive to touch the unseen threads that tie present diggers to ancient rites.

The locals, wary of outsiders poking at buried secrets, keep a respectful distance, their conversations laced with superstition and guarded warnings. Figures such as the pragmatic Porter and the sharp‑tongued butcher Turi embody the village’s protective stance, hinting at a collective memory that refuses to be easily uncovered. As the team delves deeper, the atmosphere tightens, balancing the excitement of discovery against an ever‑present sense that some histories are best left undisturbed. The film breathes a slow, atmospheric tension, inviting the audience to feel the pull between empirical truth and the lingering ghosts of a violent, forgotten past.

Full plot

What Happens in Demonia?

The complete story of Demonia, from the first scene to the last, in 951 words (about 4 minutes). Spoilers throughout.

Spoilers ahead

In 1486, on a sunbaked day in Sicily, a mob terrorized a village and tortured and crucified five nuns, suspected of witchcraft, sealing them in a hidden chamber beneath their convent. The grim secret of the monastery’s depths would echo through centuries, hinted at by whispers and old legends that locals barely dared to speak aloud.

Toronto, 1990. During a seance, Liza [Meg Register] experiences a vivid vision of the crucified nuns and collapses in fear. The unnerving vision lingers, pulling her toward a dangerous curiosity about what lies beneath the surface of history. Months later, she teams up with Professor Paul Evans [Brett Halsey], a respected archaeologist and her former mentor, to lead a survey near Santa Rosalia, a quiet town perched on the Sicilian coast. The pair uncover hints of a forgotten past that seems to answer neither time nor reason.

From the start, the locals are wary. Porter [Al Cliver], a practical, no-nonsense figure, and Turi DeSimone [Lino Salemme], a butcher with a sharp tongue and sharper suspicions, urge caution and warn them away from the monastery ruins that overlook the dig. The atmosphere in the village is thick with superstition and fear, a texture of stone and shadow that seems to watch the progress of the dig. Despite Professor Evans’s insistence that Liza should steer clear of anything supernatural after the Toronto seance, her fascination with the monastery’s rumored horrors only grows.

Liza’s drive leads her to break into the monastery crypt, convinced there is another chamber hidden behind a wall. With a pick-axe, she breaches the wall and discovers a cavern where charred remains of the five nuns lie silent and cold. When she reports her discovery to Evans, his reaction is swift and stern: forget what you saw. The tension between scientific restraint and a pull toward the unknown becomes a central thread, pulling at Liza’s judgment and threatening to unravel the fabric of the mission.

As if the past itself is pushing forward, supernatural murders begin to occur. Porter is slain on his boat by a harpoon-wielding spectral nun, a chilling image that sets the tone for what is to come. Two members of the dig team, Sean [Grady Clarkson] and Kevin [Pascal Druant], are lured into the ruins by alluring voices and fall through a weak floorboard into a pit of metal spikes, their screams swallowed by the eerie silence of the stones. The body count climbs as Interpol Inspector Carter [Lucio Fulci] arrives to investigate the strange, unaccountable deaths. His presence adds a layer of official gravity to a mystery that seems to bend the rules of the natural world.

During the investigations, Liza encounters a strange-looking woman, Lilla [Carla Cassola], who reveals a version of the monastery’s history that has long been buried. Lilla tells of nuns who practiced witchcraft and hosted orgies in the ruins, inviting local youths for sex before murdering them at the height of ecstasy. The nuns drank the youths’ blood in a ritual frenzy, and pregnancy among the nuns produced a brutal termination: newborns were brought to term only to be thrown onto fires. The revelation is graphic and chilling, casting the monastery as a site where power, sexuality, and death are fused into a single, terrifying memory. After their talk, the old woman is fatally clawed by her pet cats, a grotesque reminder that the past can sink its claws into the present with devastating immediacy.

Back in the village, tension escalates as Evans confronts the danger posed by Turi, who has openly threatened the archaeologists. That evening, Turi is killed in the freezer of his meat shop, a brutal sign that the killer will strike where fear is most intimate and everyday. A torn piece of clothing found in Turi’s right hand points to a killer who may be closer than anyone suspects, casting suspicion on Evans himself as the investigation deepens and pressure mounts to abandon the dig.

The situation spirals when the townspeople attack the haunted ruins. Evans attempts to shepherd his team to safety, but Liza and Robbie [Francesco Cusimano], the young son of two team members, vanish in the chaos as a white-robed, faceless nun abducts him. Robbie manages to escape but not before witnessing a brutal scene: his father is ripped apart by a hidden trap outside the camp. The personal stakes are suddenly overwhelming, turning the dig into a battleground between past sins and present peril.

Pursuing the truth, Evans follows Liza into the ruins, where she—now dressed in a white robe and clearly possessed by the spirits of the evil nuns—stabs him in the stomach and then vanishes into the darkness as if dissolving into the air. The mob surges into the hidden chamber, and Liza reappears, foaming at the mouth on one of the crosses. The entire group sets the skeletal remains and the nuns alight, transforming the ruins into a roaring pyre that seals the fate of everything trapped there.

In the end, Evans staggers into the cavern to confront the nightmare again, only to find Liza dead at the foot of the burning crosses, the possession broken and the horror finally laid bare in a scene that feels both final and unresolved. The monastery’s long shadow lingers over the landscape, a reminder that some secrets, once awakened, refuse to stay buried.

Throughout this haunting tale, the tension between scientific curiosity and arcane fear, the pull of history, and the fragility of human life in the face of ancient, malevolent powers are breathlessly explored. The film leaves viewers with a lingering sense of unease, as if the stones themselves are listening, waiting for someone else to return to test the old wounds of the past.

Timeline

Demonia Timeline: Every Key Event in Order

14 key events in the order they happen, from “Crucifixion of five nuns in the monastery (1486)” to “Burning chamber and discovery of Liza’s death”. 14 events name a place, across 13 locations.

  1. 1

    Crucifixion of five nuns in the monastery (1486)

    In Sicily, 1486, a mob from the village tortures and crucifies five nuns in a chamber beneath their convent, suspected of witchcraft. The brutal act is framed by whispers of occult rites and a lasting sense of dread surrounding the monastery. The incident establishes a supernatural seed that will haunt later events.

    When:1486 Where:Monastery chamber, Sicily

  2. 2

    Liza's seance vision of the crucified nuns

    During a seance in Toronto, Liza experiences a vivid vision of the crucified nuns and collapses screaming to the floor. The vision unsettles her and foreshadows a link between the past atrocity and the present investigation. The incident sets the tone for the supernatural mystery.

    When:1990 Where:Toronto, Canada

  3. 3

    Survey team travels to Sicily and locates ruins

    Months after the Toronto seance, Liza and Professor Evans lead a survey team to Ancient Greek ruins near Santa Rosalia, Sicily. The locals urge them to respect warnings about the nearby monastery ruins that overlook the dig. The decision to continue reveals a curiosity that will draw them into danger.

    When:1990 (months after seance) Where:Ancient ruins near Santa Rosalia, Sicily

  4. 4

    Locals warn to avoid the monastery ruins

    Locals tell the survey team to stay away from the monastery’s beautiful but ominous ruins that overlook the dig. Professor Evans cautions against involving themselves with the supernatural after the Toronto seance. Liza remains fascinated by the rumors and presses the investigation.

    When:1990 Where:Monastery ruins, overlooking the dig, Sicily

  5. 5

    Liza enters the monastery crypt and discovers remains

    Ignoring warnings, Liza enters the monastery crypt and searches behind a wall she believes hides another chamber. She breaks through and uncovers the charred remains of the five nuns. When she reports her discovery, Evans angrily orders her to forget what she saw.

    When:1990 Where:Monastery crypt, Sicily

  6. 6

    First supernatural murder: Porter's death

    Soon after the discovery, supernatural murders begin. Porter is killed on his boat by a harpoon-wielding spectral nun, signaling the return of the monastery’s dark history. The team realizes the danger is real and not just a legend.

    When:1990 Where:Porter's boat, near the dig site, Sicily

  7. 7

    Murder of Sean and Kevin on the ruins

    Two team members, Sean and Kevin, are lured into the ruins by enticing female voices and fall through a weak floor into a pit of metal spikes. The brutal trap confirms that the supernatural force is actively targeting the dig team. The deaths heighten tension and fear among the survivors.

    When:1990 Where:Ruins near monastery, Sicily

  8. 8

    Inspector Carter arrives to investigate

    Inspector Carter from Interpol arrives to investigate the string of deaths. He begins coordinating the investigation and interviewing the team, while the region’s ominous history continues to weigh on everyone. The arrival brings an official perspective to the escalating horror.

    When:1990 Where:Dig site, Sicily

  9. 9

    Strange woman reveals monastery's dark past

    Liza meets a strange-looking woman who tells the full tale of the ruins: centuries ago the nuns practiced witchcraft, held orgies, drank blood, and murdered youths who were invited there. The revelation deepens the mystery and confirms the supernatural origin of the events. A subsequent attack claims the old woman, clawed to death by her cats.

    When:1990 Where:Outskirts of monastery ruins, Sicily

  10. 10

    Turi is killed; Evans suspects

    That evening, the butcher Turi is killed in his meat shop freezer. A torn piece of clothing found in his hand points to his killer and broadens the circle of suspicion around Professor Evans. The team dynamics grow tense as fear spreads.

    When:1990 Where:Meat shop, Santa Rosalia, Sicily

Show the other 4 events of Demonia
  1. 11

    Evans contemplates abandoning the dig

    With Turi’s murder, Evans considers abandoning the dig and leaving the ruins behind. Liza, however, grows increasingly unhinged and refuses to leave, aligned with the spirits she perceives. The conflict deepens the sense that someone or something will not let them escape.

    When:1990 Where:Dig site, Sicily

  2. 12

    Mob attack and Robby is abducted

    The enraged townspeople attack the haunted ruins as the danger escalates. Liza and Robby, the young son of two team members, go missing, kidnapped by a white-robed, faceless nun. Robby manages to escape but witnesses his father being torn apart by a hidden trap.

    When:1990 Where:Ruins and camp, Sicily

  3. 13

    Possession, stabbing, and a ghostly crossroads

    The pursued chase ends with Liza, dressed in a white robe, possessed by the nuns’ spirits, stabbing Evans in the stomach and disappearing. The townspeople flood into the hidden chamber, and Liza reappears foaming at the mouth on a cross, seemingly becoming one with the undead ritual.

    When:1990 Where:Hidden chamber, monastery ruins, Sicily

  4. 14

    Burning chamber and discovery of Liza’s death

    The mob sets Liza and the skeletal remains of the nuns on fire. Evans staggers into the cavern and finds Liza at the foot of the burning crosses, no longer possessed but dead. The ritual ends with the destruction of the chamber and a somber aftermath for the investigators.

    When:1990 Where:Hidden chamber and cavern, Sicily

Characters

Who Are the Main Characters in Demonia?

8 characters, among them Liza Harris (Meg Register), Professor Paul Evans (Brett Halsey) and Porter (Al Cliver): who each one is and the part they play in the story. Every profile links to the actor’s page.

  • LH

    Liza Harris (Meg Register)

    Played by Meg Register

    An impulsive yet brilliant archaeologist who leads the survey with Professor Evans. Drawn to morbid rumors, she pushes past warnings and enters the monastery crypt, triggering a chain of hauntings. Her Toronto seance vision anchors the modern investigation and she becomes increasingly entwined with the spirits of the nuns.

    • 🧭 Archaeologist
    • 👻 Paranormal
    • 🔎 Researcher
  • PP

    Professor Paul Evans (Brett Halsey)

    Played by Brett Halsey

    A respected archaeologist and Liza's former professor who anchors the expedition with skepticism and caution. He tries to keep the team focused and urges Liza to forget what she found, while gradually confronting the supernatural threat. He becomes entangled in the danger when the past resurfaces during the dig.

    • 🧭 Academic
    • 🛡️ Protector
    • 🔬 Scientist
  • P(

    Porter (Al Cliver)

    Played by Al Cliver

    A local crewman who warns the outsiders to stay away from the ruins and whose practical knowledge clashes with the growing obsession. He meets a violent end when a spectral nun targets him on his boat, underscoring the danger of provoking the past.

    • ⚓ Seafaring
    • 💀 Victim
  • TD

    Turi DeSimone (Lino Salemme)

    Played by Lino Salemme

    A volatile local butcher suspected by the archaeologists of violence. He is killed in the freezer of his meat shop as the investigation intensifies, heightening paranoia and triggering a crackdown by the community.

    • 🔪 Villain
    • 🧊 Death
  • S(

    Sean (Grady Clarkson)

    Played by Grady Clarkson

    An archaeology team member who is lured by eerie voices into the ruins and killed when he falls through a weak floor into a pit of spikes. His death marks one of the first brutal patterns that the investigators seek to understand.

    • 🧑‍🔬 Scientist
    • 💀 Victim
  • K(

    Kevin (Pascal Druant)

    Played by Pascal Druant

    Another member of the team who shares Sean's fate after the ruins lure him into danger. He becomes a victim of the constructed hazards within the monastery’s hidden passages.

    • 🧑‍🔬 Scientist
    • 💀 Victim
  • IC

    Inspector Carter (Lucio Fulci)

    Played by Lucio Fulci

    An Interpol inspector who arrives to investigate the rising deaths and the bizarre events surrounding the ruins. He acts as an external authority and helps guide the investigation while confronted with the inexplicable phenomena.

    • 🕵️ Investigator
    • ⚖️ Authority
  • L(

    Lilla (Carla Cassola)

    Played by Carla Cassola

    A local mystic who speaks about the convent's dark history and the legends surrounding the nuns. Her warnings and lore provide crucial context for the archaeologists’ understanding of the past.

    • 🧿 Local Lorekeeper
    • 🕯️ Witchcraft
Setting

Where and When Is Demonia Set?

Demonia is set in Sicily, Santa Rosalia and Toronto (1486, 1990). Here is why the time and place matter to the story.

When

1486, 1990

Set across two eras, the film opens in 1486 Sicily with the brutal crucifixion of five nuns and the monastery's dark history. Decades later, in 1990 Toronto, Liza experiences a vision during a seance, setting the stage for a modern expedition to the Sicilian ruins. The narrative alternates between an ancient past and a contemporary investigation that uncovers the same malevolent presence.

Where

Sicily, Santa Rosalia, Toronto

Locations span Sicily and the coastal town of Santa Rosalia, where a convent and its ominous monastery ruin loom over the dig. The area is steeped in medieval lore about witchcraft, nuns, and secret chambers beneath old walls. A contemporary frame unfolds in Toronto, where a seance triggers visions that draw the archaeologists back to Sicily.

  • 🗺️ Historic regions
  • 🌊 Coastal town
  • 🏛️ Ancient ruins
Themes

What Are the Themes of Demonia?

3 ideas the story keeps returning to, among them Supernatural, Witchcraft and Mystery.

  1. 01

    Supernatural

    The film centers on visions, possessions, and spectral appearances that blur the line between life and death. The monastery becomes a dangerous focal point where the past returns to torment the present. Liza's awakening links the modern dig to the nuns' vengeful spirits, driving the killings and the race to uncover the truth.

  2. 02

    Witchcraft

    The ruins hold a history of witchcraft-like rites, secret chambers, and blood rituals attributed to the nuns. Descriptions of orgies, blood drinking, and the burning of unwanted children suggest a dark, ritualized past. The mythos surrounding the convent fuels fear and fuels the investigators' pursuit of evidence.

  3. 03

    Mystery

    An investigative thread follows Evans and Carter as they decipher clues about a hidden chamber and deadly booby traps. The fragile balance between rational inquiry and occult fear drives the suspense. The climax reveals how the past's secrets erupt into a present-day inferno, ending with Liza's fate and the destruction of the ruins.

Tone & mood

What Kind of Film Is Demonia?

Dark in tone, with steady pacing and a straightforward story, going by the plot summary.

Tone
Dark
Pacing
Steady
Story
Straightforward
Intensity
High
Ending
Bleak

A steadily paced and oppressive supernatural horror film that builds an atmosphere of dread as an archaeological dig unearths a cursed history of witch-hunting nuns, leading to a grim and violent conclusion.

  • oppressive
  • eerie
  • anxious
  • claustrophobic
  • atmospheric
  • unsettling
  • archaeological discovery
  • supernatural horror
  • possession
  • historical curse

Content notes: torture, crucifixion, graphic violence, child endangerment, infant death, disembowelment.

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FAQ

Demonia Plot Questions

5 quick answers about Demonia, taken from the plot summary, character guide and setting on this page and the film’s credits.

What is Demonia about?

In the sun‑baked shadows of Sicily’s Valley of Temples, an archaeological team claws at centuries of stone, hoping to unveil a forgotten chapter of history.

Read the full plot summary

When and where does Demonia take place?

Demonia is set in Sicily, Santa Rosalia and Toronto (1486, 1990). Set across two eras, the film opens in 1486 Sicily with the brutal crucifixion of five nuns and the monastery's dark history.

The setting explained

Who are the main characters in Demonia?

The story follows Liza Harris (Meg Register) (played by Meg Register), Professor Paul Evans (Brett Halsey) (played by Brett Halsey), Porter (Al Cliver) (played by Al Cliver) and Turi DeSimone (Lino Salemme) (played by Lino Salemme); the character guide covers 8 characters in all.

All the characters

What are the main themes of Demonia?

The summary picks out 3 themes: Supernatural, Witchcraft and Mystery.

The themes explained

Who directed Demonia?

Demonia (1990) was directed by Lucio Fulci and runs 1 hour 25 minutes.

Lucio Fulci’s films

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