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Plot summary

Incubus (1966) Plot Summary & Timeline

Incubus (1966) movie poster

Incubus is a 1966 horror film directed by Leslie Stevens and Robert Fortier, running 1 hour 14 minutes. This page retells the whole story in 609 words (about 3 minutes to read) and covers 13 key events in order, 5 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 Incubus.

to read the plot summary
3 min
key events in the timeline
13
characters profiled
5
themes explained
3
Incubus (1966) movie poster
Released
Runtime
1h 14m
Genre
Horror
Original language
Esperanto
No spoilers

What Is Incubus About?

The premise of Incubus in 299 words, with nothing given away. The full story follows below.

On a remote island where the air shivers with the presence of demons and restless spirits, a lone village gathers around a sacred well reputed to grant miraculous healing and an uncanny beauty. The water’s allure draws the proud, the desperate, and those who would trade their very souls for a glimpse of perfection. Beneath the tranquil façade, a seductive darkness pulses, turning the island into a crossroads where the most forbidden desires can take root.

* Kia* emerges from the shadows of this haunted sanctuary—a striking succubus who grows weary of shepherding sinners to oblivion. Her sister, Amael, a more cautious spirit, warns that a pure soul might hold a power far beyond simple temptation. Into this uneasy balance arrives Marc, a battle‑scarred soldier seeking respite for his wounds, accompanied by his sister Arndis. Their presence sets off a subtle, magnetic tension, as Kia finds herself drawn to the possibility of an untouched soul that could rewrite the rules of her dark order.

The island’s mood sways between the intoxicating promise of the well’s gifts and the looming threat of unseen forces that linger in its mist‑cloaked forests and crumbling cathedral. An eclipse darkens the sky, hinting at celestial meddling, while whispers of love and betrayal echo through stone corridors. Marc and Kia navigate a precarious dance of attraction and defiance, each sensing that their meeting may be more than chance, yet both remain wary of the seductive evil that pervades their surroundings.

Bathed in a gothic, sensual atmosphere, the story balances horror’s chilling edge with the tenderness of an unexpected romance. Light and darkness clash subtly through lingering glances, whispered vows, and the ever‑present hum of the well’s mysterious power, leaving the audience to wonder whether desire can truly conquer the ancient, seductive evil that haunts the island.

Full plot

What Happens in Incubus?

The complete story of Incubus, from the first scene to the last, in 609 words (about 3 minutes). Spoilers throughout. Names in the text link to 4 cast member pages.

Spoilers ahead

In the village of Nomen Tuum, a place whose name translates from Latin as “your name,” a sacred well offers healing and a remarkable boost of beauty. This allure attracts visitors driven by vanity as well as by more shadowy motives, and the town becomes both a sanctuary for the sick and a crossroads for darkness. The water’s power is famous, but so too is the danger it invites, a danger that draws succubi who lure tainted souls toward a chasm of doom, offering them up to the forces of Hell and the God of Darkness.

Kia Allyson Ames emerges as a striking, restless figure among the succubi. She resents the routine of shepherding sinners to damnation and longs for something more thrilling than the usual prey. Her sister Amael Eloise Hardt warns that a pure soul could grant a dangerous power—love itself—and tries to curb Kia’s recklessness. Yet Kia is drawn to a deeper, more perilous game: she seeks a soul untouched by corruption, someone who could rewrite the rules of her dark order.

That search leads Kia to Marc William Shatner, a young soldier who arrives at the sacred well with his sister Arndis Ann Atmar to tend his battle wounds. Kia shadows them, posing as a lost traveler until she can ensnare her target. As an eclipse darkens the sky, Arndis goes briefly blind, disoriented as she tries to navigate a world suddenly edged with peril. A spark grows between Marc and Kia, and the two begin to feel a magnetic attraction despite the ominous circumstances surrounding them.

Marc makes one condition for closer closeness with Kia: they must marry. In the meantime, Kia is compelled by her own cravings and is pulled toward a confrontation with something beyond human desire. The moment of temptation culminates in a perilous journey to the cathedral, where Kia is confronted by visions of Christ and the saints. The sight awakes a revulsion in her for the purity she has been toying with, and the purer love in Marc begins to unsettle her.

Amael and Kia decide to exact revenge for what they perceive as Marc’s desecration of their world. Amael summons an incubus [Milos Milos], a malevolent force that brings violence to Marc’s doorstep. The incubus attacks, and Arndis is assaulted and murdered in the ensuing struggle, a brutal blow that leaves Marc praying earnestly for his sister’s safety. When he raises his cross, the demons recoil, and it seems the mortal may have found unexpected protection in his faith.

The aftermath intensifies as Kia trails Marc toward the cathedral, where she confesses her conflicted feelings and the odd turn of events that have bound them together. Yet the incubus is not finished, and a supernatural struggle erupts. Amael cautions that Marc now carries the sin of murder on his hands, complicating any path to forgiveness. In a moment of peril and defiance, the incubus is challenged, and the God of Darkness attempts to claim Kia as belonging to him.

In an impulse of courage, Kia rejects the malevolent claim and asserts a new allegiance: “I belong to the God of Light.” She crawls toward Marc as the forces of darkness tighten their grip. The embrace between the two feels like a chance at redemption, and the cathedral’s boundary becomes a symbolic threshold as they stand together, facing the goat-like figure that stalks the twilight. The final image lingers on their astonished gaze at the edge of the sacred space, with the Caribbean-like goat gazing back, leaving the viewer with a haunting sense of what darkness and light can do to a vulnerable pair willing to choose each other.

Timeline

Incubus Timeline: Every Key Event in Order

13 key events in the order they happen, from “Arrival at Nomen Tuum and the healing waters” to “Final boundary scene: the goat watches the couple”. 13 events name a place, across 12 locations.

  1. 1

    Arrival at Nomen Tuum and the healing waters

    The village of Nomen Tuum is introduced, famed for its healing water that can cure the sick and even beautify people. Outsiders flock to the village for cosmetic change, feeding its notoriety and temptation. The setting is described as a haven for darkness and demons.

    When:Opening Where:Nomen Tuum

  2. 2

    Kia's longing for a stronger prey; Amael warns

    Kia, a prominent succubus, grows bored with her routine of luring sinners. She longs for something more exciting than simple temptations. Amael warns that loving a pure soul could shatter their plans.

    When:Early Where:Nomen Tuum

  3. 3

    Kia tracks Marc and Arndis at the sacred water

    Kia begins to shadow Marc, a wounded soldier, and his sister Arndis, following them as they come to the sacred waters seeking healing. She disguises herself as a lost traveler to draw close. The siblings' movements set the stage for the seduction.

    When:Early Where:Path to sacred water

  4. 4

    Eclipse night and the sea lure

    During a brief eclipse, Kia persuades Marc to accompany her to the sea, starting a dangerous bond. Arndis, meanwhile, is blinded by the strange light overhead and wanders in confusion. The episode marks the first moment Marc's heart leans toward Kia.

    When:During eclipse Where:By the sea during eclipse

  5. 5

    Growing attraction between Marc and Kia

    Marc and Kia's growing bond deepens as attraction flares between them. The affair unsettles the village's order and Arndis's plight adds tension to the siblings' mission. The sea's stillness becomes a turning point for all involved.

    When:Post-eclipse Where:Sea vicinity

  6. 6

    Marc demands marriage; Kia recoils at sacred imagery

    Marc insists that closer relations must wait for marriage, complicating Kia's scheming. He guides her toward the village cathedral, where stark images of Christ and the saints confront her. The sight unsettles Kia and foreshadows a clash between light and darkness.

    When:Evening Where:Village cathedral

  7. 7

    Amael and Kia summon an incubus

    Amael and Kia finalize their revenge plan and summon an incubus to torment Marc. The plan targets Arndis as well, and the incubus begins its attack on them in a secluded way.

    When:Night Where:Outskirts of the village / secluded ground

  8. 8

    Incubus attacks Arndis and Marc prays

    The incubus assaults Arndis, fulfilling the sisters' plan, while Marc prays for his sister, making the sign of the cross as the demon closes in. The encounter shocks all and appears to seal Arndis's fate.

    When:Night Where:Near the cathedral outskirts

  9. 9

    Marc battles the incubus; Amael condemns murder

    Marc fights to defend himself and his sister as the incubus nears him, and he appears to have killed the demon. Amael cruelly reminds him that he bears the sin of murder for the acts committed by the incubus.

    When:Night Where:Near the cathedral

  10. 10

    Kia returns to the cathedral and the incubus reappears

    Kia trails the dying Marc back to the cathedral and professes her love for him. The resurrected incubus interrupts and claims she belongs to the God of Darkness.

    When:Final moments Where:Cathedral

Show the other 3 events of Incubus
  1. 11

    Kia resists, crosses, and the incubus becomes a goat

    Kia defies the incubus and makes the sign of the cross, surprising even herself. The demon transforms into a goat and wrestles her to the ground as the struggle intensifies.

    When:Climax Where:Cathedral interior/boundary

  2. 12

    Kia chooses light and embraces Marc

    Kia proclaims she belongs to the God of Light and crawls toward Marc, embracing his love as the incubus is defeated by her choice. Their bond, though tested, remains fragile but hopeful.

    When:Climax Where:Cathedral interior

  3. 13

    Final boundary scene: the goat watches the couple

    The final scene shows the couple staring in disbelief at the boundary of the cathedral, with the goat-like incubus watching them from the gate. The image seals the tenuous balance between light and darkness as their future remains uncertain.

    When:Ending Where:Cathedral boundary

Characters

Who Are the Main Characters in Incubus?

5 characters, among them Marc (William Shatner), Kia (Allyson Ames) and Amael (Eloise Hardt): who each one is and the part they play in the story. Every profile links to the actor’s page.

  • William Shatner as Marc (William Shatner) in Incubus

    Marc (William Shatner)

    Played by William Shatner

    Marc is a young soldier seeking healing for battle wounds at the sacred well, accompanied by his sister Arndis. He is portrayed as morally upright, resilient, and capable of sincere affection, especially toward Kia before she reveals her true nature. His faith and sense of duty guide him as he faces temptation and the lurking darkness. When the incubus threatens him and Arndis, he prays, makes the sign of the cross, and fights to protect both his sister and his evolving love.

    • ⚔️ Soldier
    • 💖 Love
    • 🕯️ Faith
  • K(

    Kia (Allyson Ames)

    Played by Allyson Ames

    Kia is a prominent young succubus who resents the routine of her duties and longs for something more exciting as prey. She uses charm and deception to lure Marc away from the sacred water and toward the sea, hoping to exploit his feelings. Her power creates a tension between darkness and the possibility of love, and she struggles with the idea that a pure soul could threaten Hell’s order. Ultimately, her attraction to Marc challenges her allegiance to darkness.

    • 😈 Temptress
    • 💃 Seduction
    • ⚡ Power
  • A(

    Amael (Eloise Hardt)

    Played by Eloise Hardt

    Amael is Kia's sister, who warns against the danger of pure souls and schemes revenge against Marc. She summons an incubus to attack the lovers and to punish Arndis, underscoring the ruthlessness of demonic schemes. Her calculated cruelty contrasts with Kia's conflicted longing, highlighting the film’s theme of corruption through supernatural manipulation.

    • 👿 Demon
    • 🗡️ Schemer
    • 🔥 Darkness
  • A(

    Arndis (Ann Atmar)

    Played by Ann Atmar

    Arndis is Marc's sister who accompanies him to the sacred water seeking healing. She becomes blind during an eclipse and searches for Marc in a disoriented world. She falls victim to the incubus and is murdered, embodying innocence crushed by demonic violence and serving as a catalyst for Marc’s resolve and Kia’s ultimate transformation.

    • 👁️ Blindness
    • 💔 Innocence
    • 🌙 Suffering
  • I(

    Incubus (Milos Milos)

    Played by Milos Milos

    The incubus is summoned by Amael to assault Marc and corrupt Arndis, representing the malevolent force behind the village’s darkness. The demon’s violent acts propel the confrontation between faith and temptation, and its later return underscores the stubbornness of evil in the story’s world.

    • 👹 Predator
    • 🌀 Chaos
    • 🌑 Darkness
Setting

Where and When Is Incubus Set?

Incubus is set in Nomen Tuum. Here is why the place matters to the story.

Where

Nomen Tuum

The village of Nomen Tuum centers the action around a miraculous water source that can heal the sick and grant beauty. Its notoriety attracts seekers and sinners alike, making the place a crossroads of vanity and temptation. The setting blends sacred rites with an undercurrent of darkness and demonic presence that leans on the well's mystique. The atmosphere is quiet and secluded, yet charged with supernatural danger.

  • 🌿 Healing village
  • 🕯️ Sacred well
  • 🌊 Dark folklore
Themes

What Are the Themes of Incubus?

3 ideas the story keeps returning to, among them Temptation, Redemption and Duality.

  1. 01

    Temptation

    The story foregrounds seductive power and the lure of beauty and control that can corrupt even the noblest hearts. Kia pursues more exciting prey, while Marc's integrity anchors him against her charms. The conflict reveals how desire can blur moral lines, inviting danger into the sacred space of the village well and cathedral.

  2. 02

    Redemption

    Love and faith act as a counterforce to darkness. Kia's capacity to be moved by Marc's purity hints at a possibility of choosing light over sinister power. The climax shows a transformation where light confronts the dark, and a change of heart can overturn a predestined fall.

  3. 03

    Duality

    The film pits purity against corruption, mercy against vengeance, and love against infernal temptation. Each character embodies a spectrum of moral choices, and the boundary between light and darkness shifts as events unfold. The final moment suggests that salvation can arise from unlikely sources when fear and hatred meet compassion.

Tone & mood

What Kind of Film Is Incubus?

Dark in tone, with variable pacing and a moderate story, going by the plot summary.

Tone
Dark
Pacing
Variable
Story
Moderate
Intensity
High
Ending
Ambiguous

A dark and erotic supernatural horror that feels both gothic and atmospheric, building an intense sense of dread and moral conflict as a demon wages a spiritual battle for a soldier's soul.

  • seductive
  • gothic
  • eerie
  • anxious
  • demonic
  • spiritual conflict
  • good versus evil
  • temptation and sin
  • redemption
  • supernatural horror

Content notes: sexual assault, murder, supernatural horror, demonic themes.

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Where to watch

Where to Watch Incubus

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

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FAQ

Incubus Plot Questions

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

What is Incubus about?

On a remote island where the air shivers with the presence of demons and restless spirits, a lone village gathers around a sacred well reputed to grant miraculous healing and an uncanny beauty.

Read the full plot summary

When and where does Incubus take place?

Incubus is set in Nomen Tuum. The village of Nomen Tuum centers the action around a miraculous water source that can heal the sick and grant beauty.

The setting explained

Who are the main characters in Incubus?

The story follows Marc (William Shatner) (played by William Shatner), Kia (Allyson Ames) (played by Allyson Ames), Amael (Eloise Hardt) (played by Eloise Hardt) and Arndis (Ann Atmar) (played by Ann Atmar); the character guide covers 5 characters in all.

All the characters

What are the main themes of Incubus?

The summary picks out 3 themes: Temptation, Redemption and Duality.

The themes explained

Who directed Incubus?

Incubus (1966) was directed by Leslie Stevens and Robert Fortier and runs 1 hour 14 minutes.

Leslie Stevens’s films

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