Young doctor Garondet is summoned by renowned Professor Orloff. At Orloff's castle, Garondet discovers that the mad scientist has created an invisible yet murderous apeman.

Top Cast

Howard VernonProfessor Orloff

Brigitte CarvaCécile Orloff

Fernando SanchoThe Game-Keeper

Paco ValladaresDr. Garondet

Eugène BerthierThe Old Servant

Isabel del RíoMarie

Arlette Balkis

May Chartrette