- HD 1080
- Runtime: 78m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Del Tenney
- Stars: John Scott, Alice Lyon, Allan Laurel, Eulabelle Moore, Marilyn Clarke
- keywords: beach, monster, mutation, slumber party, connecticut, b movie, black and white, sea monster, creature feature, beach party, nuclear waste, monster movie, rampaging monster, atomic mutation, teenage, bums, biker gang
- Production_studio: Iselin-Tenney Productions
- Slogan: WEIRD! Ghoulish atomic beasts who live off human blood!
- providers: Amazon Prime Video, Amazon Prime Video with Ads
- The The Horror of Party Beach is featured in the top rankings of 1964
- #39 in Top Horror Movies of 1964
Radioactive waste dumped off the coastline creates mutant monsters. The beasts attack slumber parties, beaches, tourists, and terrorize a waterfront community as a scientist, his daughter, her boyfriend and the local police try to find a way to stop them.