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A killer ape, a mad scientist, and a marriage proposal—1926 horror had no chill.

Unknown Treasures (1926)

creaky mansioncorepre-Code chaosape- adjacent mystery

Overview

DramaHorrorRomanceThrillerMystery

A poor man refrains from proposing to the woman he loves until he can secure the fortune left him by his uncle. Believing the treasure awaits in his uncle's abandoned mansion, he begins searching... only to uncover mystery, murder, and a killer ape.

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Content warning
murdermurder mysterymad scientistmysterysilent filmmarriage proposallost filmold dark housesilent horrorkiller ape+1 more

Standout Aspects

Practical Effects

Killer ape suit from the golden age of monster costumes.

Production

Old dark house sets that invented the trope.

Best for:Solo: Silent film nights with full attention required.·Rewatch: Film history buffs tracking lost horror gems.
Heads up:Violence: 1920s-staged murder scenes, ape attacks.
Archie Mayo

Director

Archie Mayo

ReleasedSep 1, 1926
Runtime1h
StatusReleased

Vibe

Pacesteady
Intensitymedium
Tonedark
Feelmedium
Sterling Pictures

Top Cast

Robert Agnew

Robert Agnew

Bob Ramsey

Gladys Hulette

Gladys Hulette

Mary Hamilton

John Miljan

John Miljan

Ralph Cheneey

Bertram Marburgh

Bertram Marburgh

Cyrus Hamilton

Jed Prouty

Jed Prouty

Remus

Gustav von Seyffertitz

Gustav von Seyffertitz

Simmons

Theodore Lorch

Theodore Lorch

The Ape

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Deep Dive

Trivia, insights & behind the scenes

Trivia

Considered a lost film since the 1960s; no known print survives, only stills and reviews.

Cultural

Archie Mayo later directed The Petrified Forest and blacklisted classic Black Legion—this was his horror apprenticeship.

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