Slumber Party Massacre III

Slumber Party Massacre III

Year: 1990

Runtime: 87 mins

Language: English

Director: Sally Mattison

HorrorComedyHorror the undead and monster classicsGory gruesome and slasher horrorGraphic violence and brutal revenge

After a long day of beach volleyball, a teenager whose parents are away invites her friends over for a slumber party. Their boyfriends arrive to tease them, but a mysterious stranger lurking on the shore watches the house. As night falls, the party turns deadly when a masked killer armed with a drill begins picking off the guests one by one, turning the fun night into a terrifying fight for survival.

Warning: spoilers below!

Haven’t seen Slumber Party Massacre III yet? This summary contains major spoilers. Bookmark the page, watch the movie, and come back for the full breakdown. If you're ready, scroll on and relive the story!

Timeline & Setting – Slumber Party Massacre III (1990)

Explore the full timeline and setting of Slumber Party Massacre III (1990). Follow every major event in chronological order and see how the environment shapes the story, characters, and dramatic tension.

Time period

1990s

The events occur over a single night in the early 1990s, a period known for teen slasher cinema tropes. The narrative moves from daytime beach scenes to the darkness of a domestic party, amplifying the sense of vulnerability. This era’s blend of casual teen culture and sudden violence underpins the film’s mood and pacing.

Location

Venice Beach, California

The story unfolds on a sunny Venice Beach, where friends play volleyball before retreating to a nearby house for a slumber party. The beach setting provides a carefree backdrop that contrasts with the creeping danger inside. The action shifts between sunlit shoreline moments and the claustrophobic interiors of Jackie's home, creating a constant tension between openness and confinement.

🏖 Beach 🔪 Slasher 🏠 Suburban House

Last Updated: October 04, 2025 at 13:10

Main Characters – Slumber Party Massacre III (1990)

Meet the key characters of Slumber Party Massacre III (1990), with detailed profiles, motivations, and roles in the plot. Understand their emotional journeys and what they reveal about the film’s deeper themes.

Jackie (Keely Christian)

Jackie hosts the slumber party and becomes the central survivor. She navigates conflicts with the male guests, keeps the group focused, and ultimately fights back against the killer. Her resourcefulness and determination drive the final confrontation, where she actively stops the threat. She embodies a cautious leadership amid the escalating chaos.

💪 Heroine 🗡 Survivor 🎯 Leader

Juliette (Lulu Wilson)

Juliette is a high school senior who joins the party and shares a complicated moment with Ken before tragedy strikes. She becomes a victim as the killer targets those upstairs, signaling the rapid deterioration of safety. Her arc underscores the vulnerability of the younger characters during the night.

🎀 Teen 💔 Victim 🕯 Tragedy

Sarah (Devon Jenkin)

Sarah is one of the friends who experiences the early horror by getting into her car and being murdered by an unseen assailant with a power drill. Her death marks the brutal start of the killer’s spree. Her fate establishes the stakes and fear that permeate the party.

🔪 Victim 🚗 Car Scene ⚠️ Fear

Diane (Brandi Burkett)

Diane is part of the group at the house and fights to protect others. She becomes a target of Ken and is killed after a tense struggle. Her presence reflects the courage and vulnerability of the group under threat.

🛡 Survivor ⚔ Fighter 💔 Victim

Maria (Maria Ford)

Maria is a practical member of the party who discovers Tom’s dead body and helps navigate the danger. She escapes for a time but is ultimately killed by Ken after a tense chase. Her reactions anchor the group’s attempts to understand and survive the assault.

🧭 Survivor 🩸 Victim 🗝 Ally

Susie (Maria Claire)

Susie hides and endures during the attack, later playing a key role in restraining Ken long enough for a fatal counterstrike. She remains a steady presence through the chaos and helps coordinate the group’s defense. Her calm under pressure contrasts with the killer’s volatility.

🕊 Survivor 🧭 Steady 🗡 Determined

Tom (David Kriegel)

Tom is a friend who accompanies Frank and Michael, and he becomes a casualty in the killer’s spree. His death escalates the danger and demonstrates the killer’s indiscriminate violence. His fate serves as a grim reminder of the stakes for the group.

🔪 Victim 🕯 Tragedy 🧭 Ally

Frank (David Lawrence)

Frank is among the party-goers who are drawn into the deadly events. He is killed by Ken as the killer closes in on the group. His death heightens the sense of peril and urgency for the survivors.

🔪 Victim 🕯 Tragedy 🧭 Friend

Michael (Garon Grigsby)

Michael is one of the boys who arrive at the house, but he is killed by Ken early in the spree. His death demonstrates the killer’s reach beyond the teens’ expected rivals. He is part of the group that falls under the killer’s blade.

🔪 Victim 🕯 Tragedy 🚨 Arrival

Ken (Brittain Frye)

Ken is the masked killer whose violent spree punctuates the film. He is revealed as the murderer and is driven by a traumatic past, including abuse by his uncle Billy. His spree culminates in a final confrontation with Jackie, ending in his death at her hands.

🔪 Villain 🧠 Trauma 🔒 Oppressor

Duncan (David Greenlee)

Duncan is part of the friend group and one of the first to be killed by Ken after bribing a pizza girl into delivering pizzas. His fate marks the onset of the killer’s deadly rampage. He is a catalyst for the ensuing chaos.

🎭 Victim 🧭 Friend 🔪 Target

Pizza Girl (Marta Kober)

Pizza Girl is bribed by Duncan to deliver pizzas to the girls, only to be chased and murdered by the killer. Her appearance underscores the indiscriminate nature of the violence and the killer’s reach beyond the core group.

🚚 Delivery 🪓 Victim 🕯 Foreground

Morgan (Michael Harris)

Morgan is the odd neighbor who shows an interest in touring the inside of the house, adding a sense of unease about nearby figures. He serves as a reminder that not all outsiders are friendly, and his curiosity anchors the party’s broader social dynamics.

👀 Neighbor 🕵️‍♂️ Suspicion 🏡 Outsider

Janine (Hope Marie Carlton)

Janine is one of the party-goers who joins the gathering and meets her end when Ken invades and pursues the group. Her presence helps populate the ensemble of friends who navigate the escalating danger.

🎀 Teen 💔 Victim 🕯 Tragedy

Last Updated: October 04, 2025 at 13:10

Major Themes – Slumber Party Massacre III (1990)

Explore the central themes of Slumber Party Massacre III (1990), from psychological, social, and emotional dimensions to philosophical messages. Understand what the film is really saying beneath the surface.

🩹 Trauma

Ken’s backstory involves sexual abuse by his police officer uncle Billy, which the film ties to his violent actions. The memory of that abuse surfaces as a driving force behind his killings, hinting at the long shadow trauma casts on behavior. The narrative uses this trauma to explore how past wounds can erupt as present violence. It suggests that violence can be a distorted attempt to exert control in the wake of abuse.

🛡 Survival

A core thread is the group of friends fighting to survive a calculated stalker. They improvise with weapons and quick decisions to outlast the threat, turning teamwork into a lifeline. The characters’ resolve and improvised defenses emphasize a theme of female resilience under siege. The climax centers on the survivors’ refusal to surrender to the killer.

🏠 Home Invasion

The party space and the home become battlegrounds, flipping from comfort to danger as Ken penetrates private space. The film uses the contrast between a casual teen gathering and a violent intrusion to underscore how violence invades everyday life. Safety is depicted as fragile, with the house transforming from sanctuary to trap. The horror intensifies as familiar, intimate spaces are weaponized.

Last Updated: October 04, 2025 at 13:10

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.

Unlock the Full Story of Slumber Party Massacre III

Don't stop at just watching — explore Slumber Party Massacre III 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 Slumber Party Massacre III is all about. Plus, discover what's next after the movie.

Slumber Party Massacre III Summary

Read a complete plot summary of Slumber Party Massacre III, 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.

Slumber Party Massacre III Summary

Slumber Party Massacre III Timeline

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

Slumber Party Massacre III Timeline

More About Slumber Party Massacre III

Visit What's After the Movie to explore more about Slumber Party Massacre III: 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 Slumber Party Massacre III