The Horror of Party Beach

The Horror of Party Beach

Year: 1964

Runtime: 78 mins

Language: English

Director: Del Tenney

HorrorScience FictionMusicSong and danceSci-fi horror creatures and aliens

When radioactive waste contaminates the shoreline, it spawns ghoulish, atomic creatures that feed on human blood. The mutants descend on slumber parties, beachgoers and the waterfront town, turning a peaceful community into a nightmare. A scientist, his daughter, her boyfriend and the local police race to find a way to halt the blood‑thirsty beasts.

Warning: spoilers below!

Haven’t seen The Horror of Party Beach 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 – The Horror of Party Beach (1964)

Trace every key event in The Horror of Party Beach (1964) with our detailed, chronological timeline. Perfect for unpacking nonlinear stories, spotting hidden connections, and understanding how each scene builds toward the film’s climax. Whether you're revisiting or decoding for the first time, this timeline gives you the full picture.

1

Radioactive waste dumped into the sea

A boat dumps a 55-gallon drum labeled 'Danger Radioactive Waste' into the ocean near a small East Coast beach town. The drum opens on the bottom, releasing radioactive contents onto a sunken ship and a nearby skeleton, transforming the skeleton into an aquatic humanoid monster. The monster then heads toward the surface and toward the busy beach where a dance party is underway.

Evening Ocean near the beach town
2

Monster approaches the beach party

The mutated sea creature emerges and begins moving toward the beach where a dance party by The Del-Aires is in progress. Attendees notice the creature's approach and a wave of unease spreads as people realize something is wrong.

Evening Beach
3

Tina leaves Hank; love triangle tension

Hank attends the party with his girlfriend Tina, while Hank talks with Dr. Gavin's daughter Elaine. Tina flirts with Mike, the leader of a motorcycle gang, as tensions rise between Hank and Mike. In the end, Tina leaves Hank, turning attention away from him.

Evening Beach party
4

Tina is killed at the rock jetty

Tina swims to a rock jetty seeking privacy, but the monster follows and attacks her, killing her. Her body washes ashore soon after, still covered in blood.

Night Rock jetty
5

Investigation begins; Carbon-14 proposal

Police enlist Dr. Gavin to help with Tina's death investigation. He proposes Carbon-14 testing to study the tissue's genetic structure, hoping to learn more. Eulabelle, the housekeeper, suggests that voodoo might be behind it.

Night Police station / Gavin's lab
6

Elaine's confession and slumber party decision

Elaine confesses her romantic feelings for Hank to her father. She later decides to skip a slumber party with her friends.

Night Gavin's house
7

Monster strikes the slumber party

The monster, now joined by other creatures apparently born from the same radioactive waste, attacks the slumber party and kills more than twenty attendees. The brutal slaughter triggers panic and a rush to flee or hide.

Night Slumber party location
8

Roadside attack on three travelers

Three female travelers stop to change a flat tire on a road and are attacked and killed by the monsters. The town remains on edge as more attacks unfold.

Night Highway roadside
9

Monster stalks town residents and severs its arm

While Hank and Elaine are in town for an evening dance, the monster stalks two young women walking through the streets. Frustrated when the women are picked up by a passing car, the monster turns its attention to storefront mannequins, severing its arm in the process.

Night Town streets / storefronts
10

Arm studied; sodium kills it

Dr. Gavin and Hank study the severed arm and identify the tissue as resembling a sea anemone or protozoa. Eulabelle accidentally spills a container of metallic sodium on the arm, killing it and giving them a potential weapon against the monsters.

Night Gavin's lab
11

Martial law pace and further killings

Two drunken men stumble through town and encounter a dead, mutilated man inside a parked truck; one of the drunks is attacked and killed by a monster shortly after. A montage shows additional women being attacked as the police track the monsters by their radioactive water trail.

Night Town streets
12

Hank seeks sodium in NYC; Elaine investigates quarry

Hank drives to New York City to obtain a supply of metallic sodium while Elaine searches a quarry for the monsters. The quarry water tests highly radioactive, and a monster emerges, prompting Elaine to flee while suffering a leg injury.

Night Quarry
13

Final battle: sodium-based weaponry defeats monsters

Gavin arrives with a small amount of sodium and tosses it, killing an approaching monster in a fiery explosion. He engages another in extended hand-to-hand combat. Hank returns with a large supply of sodium, and with police help they destroy the remaining monsters.

Night Quarry / town

Last Updated: October 09, 2025 at 14:07

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 The Horror of Party Beach

Don't stop at just watching — explore The Horror of Party Beach 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 The Horror of Party Beach is all about. Plus, discover what's next after the movie.

The Horror of Party Beach Summary

Read a complete plot summary of The Horror of Party Beach, 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.

The Horror of Party Beach Summary

Characters, Settings & Themes in The Horror of Party Beach

Discover the characters, locations, and core themes that shape The Horror of Party Beach. Get insights into symbolic elements, setting significance, and deeper narrative meaning — ideal for thematic analysis and movie breakdowns.

Characters, Settings & Themes in The Horror of Party Beach

More About The Horror of Party Beach

Visit What's After the Movie to explore more about The Horror of Party Beach: 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 The Horror of Party Beach

Similar Movies to The Horror of Party Beach

Discover movies like The Horror of Party Beach that share similar genres, themes, and storytelling elements. Whether you’re drawn to the atmosphere, character arcs, or plot structure, these curated recommendations will help you explore more films you’ll love.