The Unknown Terror

The Unknown Terror

They dared enter the Cave of Death to explore the secrets of hell!

1957 · 76 min · ★ 5.2 · Horror

A woman leads an expedition into a remote jungle to find her long-lost brother, but instead finds a mad scientist who has created a fungus monster that feeds on the local inhabitants.

Directed by Charles Marquis Warren · Written by Kenneth Higgins

Your Rating

Where to Watch

Streaming

Molotov TV

Cast

Make it a double feature

2h 37m together

The Unknown Terror

The Black Whip

Both from Charles Marquis Warren.

More from Charles Marquis WarrenSee all →

The Black WhipThe Black Whip · 1956
The Black Whip
★ 10.01956
MovieWestern
A gang of renegade Civil War soldiers terrorize four women and the owners of an inn as they plot to kidnap the new governor of the state. If all goes according to plan, the outlaws will murder their hostage after collecting a hefty ransom.
Beyond GloryBeyond Glory · 1948
Beyond Glory
★ 8.01948
MovieDrama
Thinking he may have caused the death of his commanding officer Captain Daniels in Tunisia, Rocky visits Daniels' widow. She falls for him, he falls for her, she encourages him to go to West Point. While there he faces serious disciplinary review for having forced a plebe into resigning. He may even be court-martialled.
RawhideRawhide · 1959
Rawhide
★ 7.31959
SeriesWesternDrama
The tale of trail boss Gil Favor and his trusty foreman Rowdy Yates as they drives cattle across the old west. Along the way they meet up with adventure and drama.
Oh! SusannaOh! Susanna · 1951
Oh! Susanna
★ 7.01951
MovieWestern
Unable to keep peace between frontier Indians and the US Cavalry, a heroic Captain risks court-martial to prevent bloodshed.
HellgateHellgate · 1952
Hellgate
★ 6.71952
MovieWestern
A man is framed and sent to the toughest prison in the territory.
Trooper HookTrooper Hook · 1957
Trooper Hook
★ 6.71957
MovieWestern
When Apache chief Nanchez is captured by the cavalry, his white squaw and infant son are returned to civilization by Sergeant Hook, but Nanchez escapes custody and attempts to re-claim his son.
Copper SkyCopper Sky · 1957
Copper Sky
★ 6.71957
MovieWestern
Alcoholic former cavalryman Hack Williams is arrested for killing an Indian, something he did not do. The townspeople, fearful of Apache reprisals, plan to hang Williams in hopes of heading off an attack. But the attack comes and Hack, locked in his jail cell, is the only survivor as a massacre occurs. Into the scene of carnage arrives schoolteacher Nora Haynes. Together she and Williams must find a way to reach safety before another Indian attack. But the pair are by no means well-matched, and their trip alone across the desert is not destined to be an easy one.
Fighting Coast GuardFighting Coast Guard · 1951
Fighting Coast Guard
★ 6.71951
MovieWarDrama
Story of how the Coast Guard trained to help win World War II.
GunsmokeGunsmoke · 1955
Gunsmoke
★ 6.71955
SeriesWesternAction & Adventure
Gunsmoke is an American radio and television Western drama series created by director Norman MacDonnell and writer John Meston. The stories take place in and around Dodge City, Kansas, during the settlement of the American West. The central character is lawman Marshal Matt Dillon, played by William Conrad on radio and James Arness on television.
Only the ValiantOnly the Valiant · 1951
Only the Valiant
★ 6.51951
MovieWestern
Only the Valiant, a classic western adventure, based on a novel by Charles Marquis Warren, the film tells the story of a Cavalry officer who volunteers for a suicidal mission to fight the hostile Apaches in an effort to prove his loyalty to his men and the woman he loves.
Springfield RifleSpringfield Rifle · 1952
Springfield Rifle
★ 6.41952
MovieWarWestern
Major Lex Kearney, dishonourably discharged from the army for cowardice in battle, volunteers to go undercover to try to prevent raids against shipments of horses desperately needed for the Union war effort. Falling in with the gang of jayhawkers and Confederate soldiers who have been conducting the raids, he gradually gains their trust and is put in a position where he can discover who has been giving them secret information revealing the routes of the horse shipments.
GunslingerGunslinger · 1961
Gunslinger
★ 6.31961
SeriesWesternDrama
Gunslinger was a Western television series starring Tony Young that aired on the CBS television network from February 9 until May 18, 1961 on Thursdays from 9 to 10 p.m. EST. The series theme song was sung by Frankie Laine. Young played Cord, a young gunfighter who works undercover for the local army garrison commander, acting as a secret law enforcement agent in the territory. The series lasted for only twelve episodes. Gunslinger was the successor to Dick Powell's Zane Grey Theater.
Day of the Evil GunDay of the Evil Gun · 1968
Day of the Evil Gun
★ 6.21968
MovieWestern
Returning home after disappearing three years ago, former gunslinger Lorn Warfield finds that an Apache raiding party has kidnapped his wife and children. Though he has renounced violence, he now takes up his gun and joins forces with his neighbor, Owen Forbes. Complicating matters, Forbes is engaged to Warfield's wife, who believed her husband was dead. As they pursue the Apaches, the two men are joined by an Indian trader, Jimmy Noble.
Tension at Table RockTension at Table Rock · 1956
Tension at Table Rock
★ 6.21956
MovieWesternDrama
When the owner of a stagecoach station is killed, a gunman takes his place.
Cattle EmpireCattle Empire · 1958
Cattle Empire
★ 6.21958
MovieWestern
After serving a five year prison sentence for allowing his men to destroy a town in a drunken spree, a trail boss is hired by the same town's leading citizen to drive their cattle to Fort Clemson. Complicating matters, a rival cattle baron also hires the cattle driver to lead his herd.
Flight to TangierFlight to Tangier · 1953
Flight to Tangier
★ 6.21953
MovieActionCrime
At the Tangier airport, a group of people await the arrival of a mysterious plane from behind the Iron Curtain. The reception committee includes Susan, an American; Gil Walker, a free-booting pilot; Danzer, a black market operator; and Danzer's girlfriend, Nicki. The plane crashes and burns. No survivors are found, nor are any corpses. Soon the search begins for a missing courier worth $3 million.

More Like This

Frankenstein Must Be DestroyedFrankenstein Must Be Destroyed · 1969
Frankenstein Must Be Destroyed
★ 6.31969
MovieHorrorScience Fiction
Blackmailing a young couple to assist with his horrific experiments the Baron, desperate for vital medical data, abducts a man from an insane asylum. On route the abductee dies and the Baron and his assistant transplant his brain into a corpse. The creature is tormented by a trapped soul in an alien shell and, after a visit to his wife who violently rejects his monstrous form, the creature wreaks his revenge on the perpetrator of his misery: Baron Frankenstein.
The Curse of FrankensteinThe Curse of Frankenstein · 1957
The Curse of Frankenstein
★ 6.81957
MovieHorrorScience Fiction
Baron Victor Frankenstein has discovered life's secret and unleashed a blood-curdling chain of events resulting from his creation: a cursed creature with a horrid face — and a tendency to kill.
Doctor XDoctor X · 1932
Doctor X
★ 6.01932
MovieHorrorThriller
A wisecracking New York reporter intrudes on a research scientist's quest to unmask The Moon Killer.
Dr. CyclopsDr. Cyclops · 1940
Dr. Cyclops
★ 6.21940
MovieAdventureHorror
Four explorers are summoned to Peru by the brilliant physicist Dr Thorkel. They discover a rich source of radium and a half-mad Thorkel who shrinks them down to one-fifth their normal size when they threaten to stop his unorthodox experimentation.
The Horror of FrankensteinThe Horror of Frankenstein · 1970
The Horror of Frankenstein
★ 5.91970
MovieHorrorScience Fiction
Brilliant but arrogant scientist Victor Frankenstein builds a man from spare body parts, only for the monster to come alive and wreak havoc.
House of FrankensteinHouse of Frankenstein · 1944
House of Frankenstein
★ 6.11944
MovieHorrorScience Fiction
Deranged scientist, Gustav Niemann, escapes from prison and overtakes the director of a traveling chamber of horrors, soon reviving the infamous Count Dracula, the frozen Frankenstein Monster, and the Wolf Man.
Frankenstein Created WomanFrankenstein Created Woman · 1967
Frankenstein Created Woman
★ 6.41967
MovieHorrorScience Fiction
A deformed tormented girl drowns herself after her lover is framed for murder and guillotined. Baron Frankenstein, experimenting with the transfer of souls, places the boy's soul into her body, bringing Christina back to life. Driven by revenge, she carries out a violent retribution on those responsible for both deaths.
Frankenstein and the Monster from HellFrankenstein and the Monster from Hell · 1974
Frankenstein and the Monster from Hell
★ 6.11974
MovieHorrorScience Fiction
Dr Simon Helder, sentenced to an insane asylum for crimes against humanity, recognises its director as the brilliant Baron Frankenstein, the man whose work he had been trying to emulate before his imprisonment. Frankenstein utilises Helder's medical knowledge for a project he has been working on for some time. He is assembling a man from vital organs extracted from various inmates in the asylum. And the Baron will resort to murder to acquire the perfect specimens for his most ambitious project ever.
Lady FrankensteinLady Frankenstein · 1971
Lady Frankenstein
★ 5.61971
MovieHorrorScience Fiction
When Dr. Frankenstein is killed by a monster he created, his daughter and his lab assistant continue his experiments.
The Evil of FrankensteinThe Evil of Frankenstein · 1964
The Evil of Frankenstein
★ 6.21964
MovieHorrorScience Fiction
Once hounded from his castle by outraged villagers for creating a monstrous living being, Baron Frankenstein returns to Karlstaad. High in the mountains they stumble on the body of the creature, perfectly preserved in the ice. He is brought back to life with the help of the hypnotist Zoltan who now controls the creature. Can Frankenstein break Zoltan's hypnotic spell that incites the monster to commit these horrific murders or will Zoltan induce the creature to destroy its creator?
The Revenge of FrankensteinThe Revenge of Frankenstein · 1958
The Revenge of Frankenstein
★ 6.61958
MovieHorrorScience Fiction
Rescued from the guillotine by his devoted dwarf Fritz, the Baron relocates to Carlsbruck, where he continues his gruesome experiments.
Bride of FrankensteinBride of Frankenstein · 1935
Bride of Frankenstein
★ 7.51935
MovieHorrorScience Fiction
After recovering from injuries sustained in the mob attack upon himself and his creation, Dr. Henry Frankenstein falls under control of his former mentor, Dr. Pretorius, who insists the now-chastened doctor resume his experiments in creating new life. Meanwhile, the Monster remains on the run from those who wish to destroy him.

Rate this film

Your ratings make Midnight smarter