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Plot summary & ending explained

My Best Friend's Exorcism (2022) Plot Summary, Ending Explained & Timeline

My Best Friend's Exorcism (2022) movie poster

My Best Friend's Exorcism is a 2022 thriller and horror film directed by Damon Thomas, running 1 hour 37 minutes. This page retells the whole story in 445 words (about 2 minutes to read) and covers 15 key events in order, 3 characters, where and when it is set, 3 themes and the ending explained. Looking for the cast, ratings and where to stream it? See the movie page for My Best Friend's Exorcism.

to read the plot summary
2 min
key events in the timeline
15
characters profiled
3
themes explained
3
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My Best Friend's Exorcism (2022) movie poster
Released
Runtime
1h 37m
Director
Damon Thomas
Original language
English
No spoilers

What Is My Best Friend's Exorcism About?

The premise of My Best Friend's Exorcism in 330 words, with nothing given away. The full story and the ending follow below.

In the summer of 1988, a time of mixtapes, roller rinks and the glow of neon, a handful of teenagers navigate the ordinary rhythms of high school while the world around them hums with the restless energy of a decade on the brink of change. The film captures that nostalgic backdrop with a palette of pastel sweaters, cassette tapes and late‑night drive‑ins, allowing the everyday to feel both familiar and slightly off‑kilter, as if an unseen current is waiting to ripple beneath the surface.

At the heart of this world is Abby Rivers, a fiercely loyal best friend whose life revolves around her close bond with Gretchen Lang. Their friendship, forged in shared secrets and whispered confidences, feels as solid as the denim jackets they wear. As the two girls drift through the awkward rites of adolescence—first crushes, cliques, and the pressure to fit in—their connection becomes a quiet anchor amid the swirling trends and teenage turbulence.

Orbiting them are a colorful cast of peers: the thoughtful Margaret Chisholm, the outspoken Glee Tanaka, the charismatic yet enigmatic Wallace Stoney, and the oddly sincere fitness influencer Christian Lemon. Even the well‑meaning guidance of Sister Kathleen and Brother Morgan adds a layer of adult perspective to the teenage swirl. Their interactions are laced with the humor, jealousy and camaraderie that define any close‑knit group, hinting at deeper undercurrents without spilling their secrets.

When Gretchen begins to exhibit unsettling changes, the tone shifts from light‑hearted teen drama to a pulse‑quickening mystery. Abby senses that something far more sinister than typical high‑school drama has taken hold—a vague, malevolent presence that whispers through the halls of their suburban world. Determined to protect her friend, she turns to an unconventional source of help, an unusual exorcist whose methods are as unconventional as the era’s fashion. The film balances the tender intimacy of friendship with an eerie, growing dread, inviting viewers to wonder how far a bond can stretch when faced with an unseen, escalating supernatural threat.

Full plot

What Happens in My Best Friend's Exorcism?

The complete story of My Best Friend's Exorcism, from the first scene to the last, in 445 words (about 2 minutes). Spoilers throughout. Names in the text link to 8 cast member pages.

Spoilers ahead

Teenage best friends Abby Rivers and Gretchen Lang embark on an adventurous sleepover at Margaret Chisholm’s lake house, alongside their classmate Glee Tanaka. This seemingly innocent gathering quickly takes a dark turn as they play with a Ouija board and inadvertently conjure an evil spirit. The atmosphere intensifies when Margaret’s boyfriend Wallace Stoney joins them, leading the group to share the experience of taking LSD.

While under the influence, Abby and Gretchen explore the eerie abandoned building nearby, only to encounter several chilling events, culminating in a frightening attack on Gretchen by a supernatural force. Observing the peculiar change in Gretchen’s behavior, Abby becomes increasingly alarmed, especially when she catches the eye of Christian Lemon, a fitness influencer who seems disturbed by Gretchen’s state.

As Gretchen spirals further out of control—exhibiting odd behaviors such as projectile vomiting on Wallace and indiscretely using the restroom—she confides in Abby about her traumatic experience at the lake house, claiming a persistent haunting. Abby, interpreting this as a sexual assault, seeks help from Gretchen’s parents and school authorities like Sister Kathleen and Brother Morgan, but her concerns are dismissed, leaving her feeling powerless.

Determined to uncover the truth, Abby returns to the haunted house and discovers the name Andras inscribed on a wall. This revelation puts her at odds with her friends—Glee and Margaret—as her accusations against Wallace lead to tension and violence, including a physical confrontation with him. Gretchen, feeling betrayed, distances herself from Abby, leading to a public humiliation that culminates in Abby severing their friendship.

Despite the estrangement, Gretchen’s unsettling transformation into a more popular and manipulative figure causes chaos among their peers. She preys upon Margaret’s insecurities and initiates schemes that threaten Glee’s health, even going so far as to use poisons against them. Meanwhile, Abby tries to unveil the truth about Gretchen’s possession, finding more clues in her belongings.

An alarming visit to Margaret reveals how dangerously ill she has become due to Gretchen’s actions. Desperate for a solution, Abby seeks aid from Christian, who acknowledges that Gretchen is indeed possessed and offers to perform an exorcism.

In a climactic confrontation, Abby leads Gretchen to the lake house where the exorcism is initiated. However, when the demon materializes as Christian’s mother, he panics and flees. With fierce determination, Abby resorts to stabbing Gretchen in an attempt to banish the demon. A battle ensues as Abby carries out a makeshift exorcism, ultimately resulting in the destruction of the malevolent entity.

Weeks later, even though Gretchen relocates to start anew, her friendship with Abby remains untouched, as they continue their annual trips back to the lake house—sharing the bonds of friendship forged through such harrowing experiences.

Timeline

My Best Friend's Exorcism Timeline: Every Key Event in Order

15 key events in the order they happen, from “Sleepover Begins” to “Friendship Resumed”. 10 events name a place, across 3 locations.

  1. 1

    Sleepover Begins

    Abby, Gretchen, and their classmate Glee arrive at Margaret's lake house for what starts as a fun sleepover. The atmosphere is light-hearted, and excitement fills the air as they settle in for the night.

    Where:Margaret's Lake House

  2. 2

    The Ouija Board

    The friends decide to play with a Ouija board, curious about the supernatural. Unbeknownst to them, this decision will lead to disastrous consequences as they inadvertently summon an evil spirit.

    Where:Margaret's Lake House

  3. 3

    LSD Experience

    Margaret's boyfriend Wallace arrives, and the group decides to try LSD together. This psychedelic experience heightens their perceptions but also opens the door to terrifying events to come.

    Where:Margaret's Lake House

  4. 4

    Eerie Exploration

    Under the influence of LSD, Abby and Gretchen venture into an abandoned building nearby. Their exploration takes a sinister turn as they encounter strange and frightening occurrences.

    Where:Abandoned Building

  5. 5

    Gretchen's Attack

    While exploring, Gretchen is abruptly attacked by a supernatural force, leaving Abby terrified and concerned for her friend's well-being. This incident marks the beginning of Gretchen's dramatic transformation.

    Where:Abandoned Building

  6. 6

    Gretchen's Odd Behavior

    After the attack, Gretchen begins to exhibit strange and alarming behaviors. Abby notices her friend's transformation, especially when Gretchen has a bizarre episode involving Wallace.

  7. 7

    Seeking Help

    Abby grows increasingly worried about Gretchen's state and decides to seek help from her parents and school authorities. Despite her earnest concerns, Abby is met with skepticism and disbelief.

  8. 8

    Discovery of Andras

    Determined to uncover the truth, Abby returns to the haunted building and finds the name 'Andras' inscribed on the wall. This revelation sparks tension with her friends as she confronts Wallace.

    Where:Abandoned Building

  9. 9

    Betrayal and Humiliation

    As Abby's accusations against Wallace cause friction, Gretchen feels betrayed and distances herself from Abby. This rift culminates in public humiliation for Abby, leading to the end of their friendship.

  10. 10

    Gretchen's Dark Influence

    Despite their fallout, Gretchen becomes more manipulative and begins to threaten the well-being of their friends, particularly targeting Margaret and Glee. Abby observes the chaos and continues to investigate.

Show the other 5 events of My Best Friend's Exorcism
  1. 11

    Margaret's Illness

    Abby visits Margaret and discovers that she has fallen gravely ill, a consequence of Gretchen's nefarious actions. This prompts Abby to act swiftly in search of a solution.

  2. 12

    Exorcism Plan

    Abby seeks help from Christian, who confirms that Gretchen is possessed. In a desperate bid to save her friend and others affected, he agrees to perform an exorcism at the lake house.

    Where:Margaret's Lake House

  3. 13

    Climactic Confrontation

    At the lake house, the group initiates the exorcism, but as the demon reveals itself as Christian's mother, he panics and flees, leaving Abby to confront the evil alone.

    Where:Margaret's Lake House

  4. 14

    Battle against the Demon

    In a desperate move to save her friend, Abby resorts to stabbing Gretchen in an effort to drive out the demon. This intense battle culminates in the defeat of the malevolent spirit.

    Where:Margaret's Lake House

  5. 15

    Friendship Resumed

    Weeks after the harrowing events, Gretchen relocates but her friendship with Abby remains intact. They continue their annual trips to the lake house, honoring the bond they forged through their experiences.

    Where:Lake House

Characters

Who Are the Main Characters in My Best Friend's Exorcism?

3 characters, among them Abby Rivers (Elsie Fisher), Gretchen Lang (Amiah Miller) and Glee Tanaka (Cathy Ang): who each one is and the part they play in the story. Every profile links to the actor’s page.

  • Elsie Fisher as Abby Rivers (Elsie Fisher) in My Best Friend's Exorcism

    Abby Rivers (Elsie Fisher)

    Played by Elsie Fisher

    Abby is a fiercely loyal friend, determined to uncover the truth behind her friend Gretchen's unsettling transformation. Her courage and resourcefulness shine as she navigates a series of horrifying events, ultimately leading her to confront the supernatural. Despite facing dismissal from adults, Abby's tenacity and love for her friend drive her to take drastic actions.

    • 👩‍🎓 Teenager
    • 💪 Determined
    • 🤔 Loyal
  • Amiah Miller as Gretchen Lang (Amiah Miller) in My Best Friend's Exorcism

    Gretchen Lang (Amiah Miller)

    Played by Amiah Miller

    Gretchen's character undergoes a harrowing change as she becomes possessed by a malevolent spirit. Initially a beloved friend, her transformation into a manipulative figure reveals the complexities of her personality and the traumas she endures. As she grapples with her new identity, her descent into darkness challenges her relationships and ultimately leads to tragic consequences.

    • 👩‍🎤 Possessed
    • 😈 Manipulative
    • 😢 Traumatized
  • Cathy Ang as Glee Tanaka (Cathy Ang) in My Best Friend's Exorcism

    Glee Tanaka (Cathy Ang)

    Played by Cathy Ang

    Glee serves as a vital part of the friend group, often caught in the turmoil between Abby and Gretchen. Her character embodies the struggle of being a teenager amidst supernatural chaos and the heartbreak that comes from witnessing friendships fracture. Glee's experiences highlight the emotional toll of the events surrounding the lake house.

    • 👩‍🎤 Classmate
    • 🤷‍♀️ Conflicted
    • 😟 Concerned
Setting

Where and When Is My Best Friend's Exorcism Set?

My Best Friend's Exorcism is set in Margaret's lake house and an abandoned building. Here is why the place matters to the story.

When

The movie captures the essence of teenage life, focused on friendship dynamics, experimentation, and the quest for identity. Set in contemporary times, it reflects on the challenges faced by adolescents, particularly issues surrounding trust and betrayal in relationships.

Where

Margaret's lake house, an abandoned building

The primary setting is Margaret's lake house, a location that serves as a backdrop for friendship and horror. This tranquil space quickly transforms into a site of supernatural events, particularly when a Ouija board is involved. An eerie abandoned building nearby heightens the atmosphere of suspense, drawing the characters into a chilling exploration that leads to their nightmarish experiences.

  • 🏡 Lake House
  • 🏚️ Abandoned Building
Themes

What Are the Themes of My Best Friend's Exorcism?

3 ideas the story keeps returning to, among them Possession, Friendship and Supernatural.

  1. 01

    Possession

    Possession serves as a central theme in the film, exploring how it manifests both physically and emotionally. Gretchen's transformation into a more malevolent version of herself highlights the subtle yet powerful impacts of external influences on personal identity. The struggle between Abby and the evil entity embodies the fight for autonomy and the bond of friendship tested by extraordinary circumstances.

  2. 02

    Friendship

    The theme of friendship is prevalent throughout the movie, illustrated by Abby and Gretchen's initial close bond. However, as horror unfolds and trust erodes, their relationship is deeply tested. Despite the trauma, their connection shows resilience, emphasizing that true friendship can withstand even the darkest trials.

  3. 03

    Supernatural

    The supernatural elements introduce an air of mystery and fear, primarily instigated by the Ouija board's unintended consequences. This theme explores humanity's fascination with the unknown and highlights the thin veil separating reality from the paranormal. The supernatural conflict drives the narrative, bringing forth both terror and a deeper understanding of the characters' vulnerabilities.

Ending explained

How Does My Best Friend's Exorcism End?

The last act of My Best Friend's Exorcism and what it means, in 175 words. The ending lands as bittersweet. Big spoilers: read the plot summary first if you have not seen it.

The final act, in full

In the climax of the film, Abby manages to perform a makeshift exorcism on Gretchen, who has been possessed by the powerful demon Andras. This demon, which is one of the highest-ranking in Hell, has taken control of Gretchen and turned her against her friends, sabotaging their lives and causing chaos. Abby, with some improvisation involving perfume and alcohol to create a fiery burn, confronts the demon in a final showdown. Despite the chaotic and less-than-professional attempt, the exorcism succeeds in banishing the demon back to hell, freeing Gretchen from its grip. Afterwards, Gretchen begins a new chapter in her life, leaving the haunted memories behind and reconnecting with her friends. Although the film hints at some lingering doubts about the strength of their battle, ultimately, the demon is defeated through Abby’s brave but imperfect effort. Gretchen, now demon-free, can move forward, and her friendship with Abby remains strong, symbolizing the endurance of true friendship even through supernatural ordeals. The ending underscores that even in chaos and mistakes, courage and loyalty can triumph over darkness.}

Tone & mood

What Kind of Film Is My Best Friend's Exorcism?

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

Tone
Dark
Pacing
Fast
Story
Straightforward
Intensity
High
Ending
Bittersweet

A frantic and anxiety-inducing horror film that blends nostalgic 1980s teen life with the desperate struggle of a friend fighting to save her possessed best friend from a dark supernatural force.

  • anxious
  • disturbing
  • frantic
  • tense
  • gritty
  • desperate
  • demonic possession
  • teenage friendship
  • supernatural horror
  • exorcism

Content notes: demonic possession, substance use, psychological manipulation, physical violence, poisoning.

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FAQ

My Best Friend's Exorcism Plot Questions

6 quick answers about My Best Friend's Exorcism, taken from the plot summary, ending explained, character guide and setting on this page and the film’s credits.

What is My Best Friend's Exorcism about?

In the summer of 1988, a time of mixtapes, roller rinks and the glow of neon, a handful of teenagers navigate the ordinary rhythms of high school while the world around them hums with the restless energy of a decade on the brink of change.

Read the full plot summary

What happens at the end of My Best Friend's Exorcism?

In the climax of the film, Abby manages to perform a makeshift exorcism on Gretchen, who has been possessed by the powerful demon Andras. This demon, which is one of the highest-ranking in Hell, has taken control of Gretchen and turned her against her friends, sabotaging their lives and causing chaos.

The ending explained

When and where does My Best Friend's Exorcism take place?

My Best Friend's Exorcism is set in Margaret's lake house and an abandoned building. The movie captures the essence of teenage life, focused on friendship dynamics, experimentation, and the quest for identity.

The setting explained

Who are the main characters in My Best Friend's Exorcism?

The story follows Abby Rivers (Elsie Fisher) (played by Elsie Fisher), Gretchen Lang (Amiah Miller) (played by Amiah Miller) and Glee Tanaka (Cathy Ang) (played by Cathy Ang).

All the characters

What are the main themes of My Best Friend's Exorcism?

The summary picks out 3 themes: Possession, Friendship and Supernatural.

The themes explained

Who directed My Best Friend's Exorcism?

My Best Friend's Exorcism (2022) was directed by Damon Thomas and runs 1 hour 37 minutes.

Damon Thomas’s films

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