What Is Troll About?
The premise of Troll in 300 words, with nothing given away. The full story follows below.
In a version of San Francisco where the ordinary and the otherworldly drift together like fog over the Bay, a mischievous sovereign of the underground dwells beneath the city’s bustling streets. Troll King is a playful yet restless figure, whose ancient lineage is tied to a magical ring rumored to hold the power to reshape his very nature. His yearning for change sets him on a wandering quest that leads him far above ground, into the heart of a neighborhood that hums with everyday life.
The trail brings him to an apartment complex unlike any other—a building that seems to pulse with hidden enchantments. Hallways glitter with faint, unseen light, and the very walls whisper of forgotten fairy tales. Residents go about their routines unaware that each door could open onto a pocket of verdant forest or a fleeting glimpse of mythic creatures. The structure itself becomes a crossroads where the mundane and the magical intersect, inviting the troll’s curiosity and his unconventional brand of chaos.
Within these walls, Eunice—a formidable witch whose reputation precedes her—has long guarded the delicate balance between the two realms. Her presence is as commanding as it is enigmatic, and when the troll’s search for the coveted ring brushes against her domain, sparks of ancient rivalry ignite. Their confrontation is less a battle of malice than a clash of personalities: one driven by whimsical longing, the other by a stern devotion to keeping the city’s hidden wonders in check.
The resulting tableau is a kaleidoscope of spell‑sprinkled mayhem and witty mishaps that ripple through San Francisco’s streets. As the troll and the witch navigate each other’s quirks, the city becomes a stage for a delightfully chaotic dance of magic, humor, and the ever‑present question of whether a single enchanted object can truly rewrite a legend.
What Happens in Troll?
The complete story of Troll, from the first scene to the last, in 446 words (about 2 minutes). Spoilers throughout. Names in the text link to 6 cast member pages.
Spoilers ahead
The Potter family — Harry Potter Sr. and Anne Potter with teenage son Harry Potter Jr. and younger daughter Wendy Potter — moves into a new apartment complex in San Francisco, hoping for a fresh start. As they begin the quiet work of settling in, their world takes a strange and sudden turn. Wendy is attacked by a grotesque little creature wielding a glittering ring, and the creature quickly slips away, leaving Wendy shaken and confused. The same creature then captures Wendy and takes on her appearance, sowing confusion and fear within the family.
They soon notice Wendy’s unusual, increasingly aggressive behavior, but blame it on the stress of the move and the upheaval in their lives. Meanwhile, the troll—the creature behind the haunting disturbances—travels from apartment to apartment, transforming the living spaces into lush, otherworldly forests and spawning a procession of fairy-tale life, including goblins, nymphs, and elves, that weave a new, dangerous magic through the building.
Troubled by his sister’s sudden shift, Harry Potter Jr. seeks guidance from a mysterious older woman, Eunice St. Clair, who reveals herself to be a witch. She recounts a long, mythic history in which fairies and humans once shared the world, until a war reshaped the balance. A powerful wizard named Torok was in love with Eunice, and their union helped shape both realms; when Torok challenged the balance, he was transformed into a troll as punishment. Torok’s ultimate goal is to reclaim power, destroy humanity, and restore the fairy-tale world they once inhabited. He needs a princess to fulfill his vision, and he keeps Wendy alive to serve that purpose.
As Eunice and Harry Jr. uncover the extent of the magical invasion—the apartments themselves becoming gateways to a living fairy tale world—Eunice equips Harry Jr. with a magic spear, a weapon said to be capable of killing the largest and most vicious creature in this realm. But the struggle grows deadly: Eunice is attacked by Torok and is transformed into a tree stump, leaving Harry Jr. to confront the danger alone. He rescues Wendy from a glass coffin, though the spear is lost when Torok’s great batlike monster lunges at them.
In a climactic turn, Torok slays the monstrous creature to spare Wendy, effectively shattering the carefully built fairy realm. With the magical world dissolving around them, the family fights their way toward an escape just as the police arrive on the scene. Eunice is restored to her true self and parts ways with a final, bittersweet farewell. As the investigation unfolds, one officer approaches the lingering remnants of the alternate fairy world, and Torok’s dark ring is seen rising, hinting at the danger that still lingers.
Troll Timeline: Every Key Event in Order
14 key events in the order they happen, from “Family moves into San Francisco apartment complex” to “Officer drawn into remaining fragment; Torok's threat endures”. 14 events name a place, across 9 locations.
- 1
Family moves into San Francisco apartment complex
The Potter family arrives at a newly rented apartment complex in San Francisco and begins the process of unpacking. Tension and oddities surface as they settle into the unfamiliar building. The move marks the calm before the magical storm to come.
When:early Where:San Francisco apartment complex
- 2
Wendy attacked by grotesque creature with a magic ring
While unpacking, Wendy is confronted by a grotesque creature wielding a glowing ring. The creature abducts her, taking on Wendy's appearance and beginning the nightmare. The attack signals the start of the Troll's reign of transformations.
When:shortly after move-in Where:Wendy's apartment
- 3
Troll roams the building transforming apartments
The troll moves from apartment to apartment, transforming each space into a lush, otherworldly realm. It begins spawning fairy-tale creatures like goblins, nymphs, and elves, reshaping the living spaces into a magical world. The tenants are drawn deeper into the surreal change.
When:following Wendy's abduction Where:apartment building
- 4
Wendy's behavior raises concern
Colossal shifts in Wendy's mood and behavior become noticeable as she grows more aggressive. The family chalks it up to stress from moving, unaware of the troll's ongoing influence. The house and its hallways echo with strange, forest-like whispers.
When:after transformations begin Where:Potter apartment
- 5
Harry Jr. meets Eunice St. Clair, a witch
Harry Jr. seeks comfort and finds Eunice St. Clair, an enigmatic older woman who reveals herself to be a witch. She becomes a guide through the increasingly surreal landscape. Their bond deepens as danger closes in.
When:shortly after Wendy's abduction Where:Eunice's residence
- 6
Torok's war and isolation; backstory is revealed
Eunice explains the ancient conflict between fairies and humans and reveals how Torok was mutated into a troll as punishment. The tale frames the world as living inside the very apartments now transformed. Knowledge of the past sets the stakes for the battle ahead.
When:same period Where:Eunice's residence
- 7
Torok's plan centers on Wendy as a princess
Torok seeks to regain power by keeping Wendy alive as a coveted princess who can restore his realm. The narrative establishes the stakes for the girl caught between two worlds. Eunice and Harry Jr. realize he will stop at nothing to reshape reality.
When:soon after the backstory Where:transformed apartment complex
- 8
All apartments become part of the magical realm
Eunice and Harry Jr. discover that every apartment has become a gateway to the magical world. The family must navigate this new landscape to find Wendy and resist Torok's encroaching influence. The line between normal life and fairy tale blurs completely.
When:soon after Where:apartment building
- 9
Harry Jr. receives a magic spear
Eunice passes on a magic spear capable of killing the largest and most vicious creature in the realm. The weapon becomes a critical tool in the coming confrontations. It symbolizes the last sliver of hope for the family's rescue.
When:before confrontation Where:Eunice's residence
- 10
Eunice is attacked and turned into a tree stump
Torok strikes Eunice, mortally wounds her, and mutates her into a tree stump. Her fate leaves Harry Jr. and Wendy facing the looming threat alone. The loss marks a turning point in the battle for their world.
When:during confrontation Where:Eunice's residence / magical realm
Show the other 4 events of Troll Hide the last 4 events
- 11
Harry Jr. rescues Wendy from a glass coffin
Harry Jr. locates Wendy trapped inside a glass coffin and frees her from the enchanted prison. In the ensuing clash, he loses the spear to a great batlike monster, severing their protective edge against Torok. Courage and grit drive the rescue.
When:climax Where:magical realm
- 12
Torok destroys the fairy realm to spare Wendy
In a desperate bid to protect Wendy, Torok manually kills the monster and destroys his own fairy realm to avert further catastrophe. The magical world begins to collapse around them, forcing the family to flee. The moment marks the end of the parallel world as they know it.
When:final confrontation Where:magical realm
- 13
The family escapes as police arrive; Eunice is restored
The Potter family escapes just as police arrive to begin investigating the wreckage. Eunice is restored to her human form and bids them farewell before departing the scene. The house returns to relative normality, though the memory of the other world lingers.
When:immediately after escape Where:apartment building
- 14
Officer drawn into remaining fragment; Torok's threat endures
During the investigation, one police officer steps into a remaining fragment of the fairy world. Torok's arm rises, reaching for the officer with his ring as the threat lingers beyond their world. The ending leaves a chilling sense of unfinished business.
When:final moment Where:police investigation site / outside the building
Who Are the Main Characters in Troll?
6 characters, among them Wendy Potter – Jenny Beck, Harry Potter Jr. – Noah Hathaway and Eunice St. Clair – Julia Louis-Dreyfus: who each one is and the part they play in the story. Every profile links to the actor’s page.
- WP
Wendy Potter – Jenny Beck
Played by Jenny Beck
A teenage girl who becomes the Troll’s target and is impersonated by the creature. Her behavior shifts under magical influence, driving the family to realize something otherworldly is at play. Wendy’s plight anchors the family’s fight to reclaim their lives from the enchanted invasion.
- 👧 Teen
- 🪄 Possessed
- 🏙️ Urban
- HP
Harry Potter Jr. – Noah Hathaway
Played by Noah Hathaway
Wendy’s protective brother who seeks help from the mysterious Eunice. He becomes the impetus for confronting the Troll and rescuing his sister, showing courage and determination in the face of uncanny danger.
- 👦 Kid
- 🛡️ Protector
- 🕯️ Courage
-
Eunice St. Clair – Julia Louis-Dreyfus
Played by Julia Louis-Dreyfus
A mysterious, older woman who reveals herself as a witch with ties to a former fairy-human war. She guides Harry Jr., provides a magical spear, and ultimately faces a perilous cost when attacked by Torok.
- 🧙 Witch
- 🧭 Mentor
- 🔥 Sacrifice
-
Torok – Sonny Bono
Played by Sonny Bono
The exiled wizard transformed into a Troll who seeks to regain power and remake the world as a fairy-tale realm. He manipulates events, desires a princess, and ultimately confronts the heroes as his plans begin to crumble.
- 🧙 Villain
- 🗡️ Power
- 🦇 Monster
-
Harry Potter Sr. – Michael Moriarty
Played by Michael Moriarty
The Potter family patriarch who tries to keep his family safe amid the unfolding magical menace. He represents a grounded, protective adult presence in a world suddenly overrun by enchantment and danger.
- 👨 Family Patriarch
- 🛡️ Protector
- 🏙️ Urban
- AP
Anne Potter – Shelley Hack
Played by Shelley Hack
Wendy and Harry Jr.’s mother, who shares the stress of the move and the family’s peril. Her supportive presence underscores maternal resilience in the face of a hidden magical threat.
- 👩 Mother
- 🛡️ Support
- 🗝️ Stability
Where and When Is Troll Set?
Troll is set in San Francisco and California. Here is why the place matters to the story.
Where
San Francisco, California
The Potter family moves into a metropolitan apartment complex in San Francisco, which becomes the gateway to a vivid magical realm. The city’s ordinary corridors and apartments are transformed into forests and fairy-tale landscapes. This urban backdrop heightens the contrast between everyday life and the hidden, magical invasion unfolding inside the building.
- 🏙️ Urban
- 🧭 Fantasy
- 👪 Family
What Are the Themes of Troll?
3 ideas the story keeps returning to, among them Worlds Collide, Family & Courage and Power & Sacrifice.
-
01
Worlds Collide
A modern city hides an ancient war between humans and magical beings. Trolls and fairies slip into the everyday world, turning apartments into landscapes of fantasy. The narrative explores how fragile the boundary between reality and magic can be when a powerful realm intrudes on a family’s life.
-
02
Family & Courage
The Potter family bands together to confront the terrifying intrusion threatening their home. Siblings and parents collaborate with unlikely allies to protect each other, showing resilience under extreme pressure. The crisis tests loyalty, trust, and resourcefulness, driving them to brave the unknown.
-
03
Power & Sacrifice
Torok’s hunger for power fuels the conflict, forcing characters to weigh personal risk against the greater good. Eunice’s aid comes at a cost, culminating in her transformation and sacrifice. As the battle unfolds, the magical world collapses, leaving a precarious escape for the family and a haunting reminder of the costs of power.
What Kind of Film Is Troll?
Whimsical in tone, with steady pacing and a straightforward story, going by the plot summary.
- Tone
- Whimsical
- Pacing
- Steady
- Story
- Straightforward
- Intensity
- Medium
- Ending
- Ambiguous
A playful yet suspenseful fantasy adventure where a magical troll's quest brings fairy-tale chaos to a San Francisco apartment building, blending whimsical humor with moments of genuine peril.
- whimsical
- magical
- fantasy adventure
- quirky
- suspenseful
- playful
- supernatural invasion
- fairy tale creatures
- good vs evil
- magic ring
Content notes: child endangerment, supernatural horror.
Where to Watch Troll
Stream it on Fandango at Home Free and The Roku Channel, or rent or buy it from Amazon Video and Apple TV Store. US availability and prices from JustWatch.
Stream 5
Fandango at Home Free 
The Roku Channel 
Tubi TV 
Xumo Play 
YouTube Free 
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